diff --git a/packages/react-native/Libraries/LogBox/UI/AnsiHighlight.js b/packages/react-native/Libraries/LogBox/UI/AnsiHighlight.js
index df3ae6565ae4..8871f67c6bb0 100644
--- a/packages/react-native/Libraries/LogBox/UI/AnsiHighlight.js
+++ b/packages/react-native/Libraries/LogBox/UI/AnsiHighlight.js
@@ -87,7 +87,7 @@ export default function Ansi({
     <View style={styles.container}>
       {parsedLines.map((items, i) => (
         <View style={styles.line} key={i}>
-          <Text style={styles.text}>
+          <Text maxFontSizeMultiplier={1.5} style={styles.text}>
             {items.map((bundle, key) => {
               const textStyle =
                 bundle.fg && COLORS[bundle.fg]
@@ -101,6 +101,7 @@ export default function Ansi({
               return (
                 <Text
                   id="logbox_codeframe_contents_text"
+                  maxFontSizeMultiplier={1.5}
                   style={[style, textStyle]}
                   key={key}>
                   {getText(bundle.content, key)}
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorCodeFrame.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorCodeFrame.js
index 8611a6d8d261..07f7ae1f89ea 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorCodeFrame.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorCodeFrame.js
@@ -63,7 +63,7 @@ component CodeFrameDisplay(codeFrame: CodeFrame) {
         onPress={() => {
           openFileInEditor(codeFrame.fileName, codeFrame.location?.row ?? 0);
         }}>
-        <Text style={styles.fileText}>
+        <Text maxFontSizeMultiplier={1.5} style={styles.fileText}>
           {getFileName()}
           {getLocation()}
         </Text>
@@ -116,7 +116,7 @@ component AppInfo() {
       }}
       style={appInfoStyles.buildButton}
       onPress={appInfo.onPress}>
-      <Text style={appInfoStyles.text}>
+      <Text maxFontSizeMultiplier={1.5} style={appInfoStyles.text}>
         {appInfo.appVersion} ({appInfo.engine})
       </Text>
     </LogBoxButton>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooter.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooter.js
index 5d5092944e05..d8bd0cce650c 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooter.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooter.js
@@ -29,7 +29,10 @@ export default function LogBoxInspectorFooter(props: Props): React.Node {
     return (
       <View style={styles.root}>
         <View style={styles.button}>
-          <Text id="logbox_dismissable_text" style={styles.syntaxErrorText}>
+          <Text
+            id="logbox_dismissable_text"
+            maxFontSizeMultiplier={1.5}
+            style={styles.syntaxErrorText}>
             This error cannot be dismissed.
           </Text>
         </View>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooterButton.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooterButton.js
index c1ecc8fb6d5c..3db512ed3d43 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooterButton.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorFooterButton.js
@@ -35,7 +35,9 @@ export default function LogBoxInspectorFooterButton(
         }}
         onPress={props.onPress}>
         <View style={styles.buttonContent}>
-          <Text style={styles.buttonLabel}>{props.text}</Text>
+          <Text maxFontSizeMultiplier={1.5} style={styles.buttonLabel}>
+            {props.text}
+          </Text>
         </View>
       </LogBoxButton>
     </SafeAreaView>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorHeader.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorHeader.js
index 653a67a5a343..a5b5329d440e 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorHeader.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorHeader.js
@@ -36,7 +36,10 @@ export default function LogBoxInspectorHeader(props: Props): React.Node {
       <LogBoxInspectorHeaderSafeArea style={styles[props.level]}>
         <View style={styles.header}>
           <View style={styles.title}>
-            <Text style={styles.titleText} id="logbox_header_title_text">
+            <Text
+              id="logbox_header_title_text"
+              maxFontSizeMultiplier={1.5}
+              style={styles.titleText}>
               Failed to compile
             </Text>
           </View>
@@ -63,7 +66,10 @@ export default function LogBoxInspectorHeader(props: Props): React.Node {
           onPress={() => props.onSelectIndex(prevIndex)}
         />
         <View style={styles.title}>
-          <Text style={styles.titleText} id="logbox_header_title_text">
+          <Text
+            id="logbox_header_title_text"
+            maxFontSizeMultiplier={1.5}
+            style={styles.titleText}>
             {titleText}
           </Text>
         </View>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorMessageHeader.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorMessageHeader.js
index b54820b3be67..9ca2e4856799 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorMessageHeader.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorMessageHeader.js
@@ -32,7 +32,10 @@ component LogBoxInspectorMessageHeader(
       return null;
     }
     return (
-      <Text style={messageStyles.collapse} onPress={() => onPress()}>
+      <Text
+        maxFontSizeMultiplier={1.5}
+        style={messageStyles.collapse}
+        onPress={() => onPress()}>
         ... See More
       </Text>
     );
@@ -42,12 +45,16 @@ component LogBoxInspectorMessageHeader(
     <View style={messageStyles.body}>
       <View style={messageStyles.heading}>
         <Text
+          maxFontSizeMultiplier={1.5}
           style={[messageStyles.headingText, messageStyles[level]]}
           id="logbox_message_title_text">
           {title}
         </Text>
       </View>
-      <Text style={messageStyles.bodyText} id="logbox_message_contents_text">
+      <Text
+        maxFontSizeMultiplier={1.5}
+        style={messageStyles.bodyText}
+        id="logbox_message_contents_text">
         <LogBoxMessage
           maxLength={collapsed ? SHOW_MORE_MESSAGE_LENGTH : Infinity}
           message={message}
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorReactFrames.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorReactFrames.js
index d583068b45ad..953dc2b2c6c8 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorReactFrames.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorReactFrames.js
@@ -101,13 +101,24 @@ component LogBoxInspectorReactFrames(log: LogBoxLog) {
             <View style={componentStyles.component}>
               <Text
                 id="logbox_component_stack_frame_text"
+                maxFontSizeMultiplier={1.5}
                 style={componentStyles.frameName}>
-                <Text style={componentStyles.bracket}>{'<'}</Text>
+                <Text
+                  maxFontSizeMultiplier={1.5}
+                  style={componentStyles.bracket}>
+                  {'<'}
+                </Text>
                 {frame.methodName}
-                <Text style={componentStyles.bracket}>{' />'}</Text>
+                <Text
+                  maxFontSizeMultiplier={1.5}
+                  style={componentStyles.bracket}>
+                  {' />'}
+                </Text>
               </Text>
             </View>
-            <Text style={componentStyles.frameLocation}>
+            <Text
+              maxFontSizeMultiplier={1.5}
+              style={componentStyles.frameLocation}>
               {frame.file != null ? getPrettyFileName(frame.file) : ''}
               {frame.lineNumber != null ? `:${frame.lineNumber}` : ''}
             </Text>
@@ -122,7 +133,9 @@ component LogBoxInspectorReactFrames(log: LogBoxLog) {
           }}
           onPress={() => setCollapsed(!collapsed)}
           style={componentStyles.collapseButton}>
-          <Text style={componentStyles.collapse}>{getCollapseMessage()}</Text>
+          <Text maxFontSizeMultiplier={1.5} style={componentStyles.collapse}>
+            {getCollapseMessage()}
+          </Text>
         </LogBoxButton>
       </View>
     </LogBoxInspectorSection>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSection.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSection.js
index 12f3a97af269..f9620ac683fe 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSection.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSection.js
@@ -22,7 +22,9 @@ component LogBoxInspectorSection(
   return (
     <View style={styles.section}>
       <View style={styles.heading}>
-        <Text style={styles.headingText}>{heading}</Text>
+        <Text maxFontSizeMultiplier={1.5} style={styles.headingText}>
+          {heading}
+        </Text>
         {action}
       </View>
       <View style={styles.body}>{children}</View>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSourceMapStatus.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSourceMapStatus.js
index 5351316fc12e..4a321a5004c0 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSourceMapStatus.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorSourceMapStatus.js
@@ -103,7 +103,9 @@ component LogBoxInspectorSourceMapStatus(
             : {transform: [{rotate: state.rotate}]},
         ]}
       />
-      <Text style={[styles.text, {color}]}>Source Map</Text>
+      <Text maxFontSizeMultiplier={1.5} style={[styles.text, {color}]}>
+        Source Map
+      </Text>
     </LogBoxButton>
   );
 }
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrame.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrame.js
index d33b7bf8ca5f..e7b75d9b4f1e 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrame.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrame.js
@@ -44,11 +44,13 @@ component LogBoxInspectorStackFrame(
         style={styles.frame}>
         <Text
           id="logbox_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={[styles.name, frame.collapse === true && styles.dim]}>
           {frame.methodName}
         </Text>
         <Text
           ellipsizeMode="middle"
+          maxFontSizeMultiplier={1.5}
           numberOfLines={1}
           style={[styles.location, frame.collapse === true && styles.dim]}>
           {location}
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrames.js b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrames.js
index 8487e6fa807d..b7fbc37cfcdb 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrames.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxInspectorStackFrames.js
@@ -89,7 +89,7 @@ component LogBoxInspectorStackFrames(log: LogBoxLog, onRetry: () => void) {
       }>
       {log.symbolicated.status !== 'COMPLETE' && (
         <View style={stackStyles.hintBox}>
-          <Text style={stackStyles.hintText}>
+          <Text maxFontSizeMultiplier={1.5} style={stackStyles.hintText}>
             This call stack is not symbolicated. Some features are unavailable
             such as viewing the function name or tapping to open files.
           </Text>
@@ -138,7 +138,9 @@ component StackFrameFooter(message: string, onPress: () => void) {
         }}
         onPress={onPress}
         style={stackStyles.collapseButton}>
-        <Text style={stackStyles.collapse}>{message}</Text>
+        <Text maxFontSizeMultiplier={1.5} style={stackStyles.collapse}>
+          {message}
+        </Text>
       </LogBoxButton>
     </View>
   );
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxMessage.js b/packages/react-native/Libraries/LogBox/UI/LogBoxMessage.js
index 73fd359cc088..626428a99bbe 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxMessage.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxMessage.js
@@ -43,7 +43,11 @@ component TappableLinks(content: string, style: void | TextStyleProp) {
 
   if (matches.length === 0) {
     // No URLs detected. Just return the content.
-    return <Text style={style}>{content}</Text>;
+    return (
+      <Text maxFontSizeMultiplier={1.5} style={style}>
+        {content}
+      </Text>
+    );
   }
 
   // URLs were detected. Construct array of Text nodes.
@@ -55,7 +59,11 @@ component TappableLinks(content: string, style: void | TextStyleProp) {
   for (const linkRange of matches) {
     if (startIndex < linkRange.lowerBound) {
       const text = content.substring(startIndex, linkRange.lowerBound);
-      fragments.push(<Text key={++indexCounter}>{text}</Text>);
+      fragments.push(
+        <Text key={++indexCounter} maxFontSizeMultiplier={1.5}>
+          {text}
+        </Text>,
+      );
     }
 
     const link = content.substring(linkRange.lowerBound, linkRange.upperBound);
@@ -66,6 +74,7 @@ component TappableLinks(content: string, style: void | TextStyleProp) {
           Linking.openURL(link);
         }}
         key={++indexCounter}
+        maxFontSizeMultiplier={1.5}
         style={styles.linkText}>
         {link}
       </Text>,
@@ -77,13 +86,17 @@ component TappableLinks(content: string, style: void | TextStyleProp) {
   if (startIndex < content.length) {
     const text = content.substring(startIndex);
     fragments.push(
-      <Text key={++indexCounter} style={style}>
+      <Text key={++indexCounter} maxFontSizeMultiplier={1.5} style={style}>
         {text}
       </Text>,
     );
   }
 
-  return <Text style={style}>{fragments}</Text>;
+  return (
+    <Text maxFontSizeMultiplier={1.5} style={style}>
+      {fragments}
+    </Text>
+  );
 }
 
 const cleanContent = (content: string) =>
@@ -98,7 +111,7 @@ component LogBoxMessage(
   const {content, substitutions}: Message = message;
 
   if (plaintext === true) {
-    return <Text>{cleanContent(content)}</Text>;
+    return <Text maxFontSizeMultiplier={1}>{cleanContent(content)}</Text>;
   }
 
   const resolvedMaxLength = maxLength != null ? maxLength : Infinity;
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationCountBadge.js b/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationCountBadge.js
index 1777de4d6956..5716be260ace 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationCountBadge.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationCountBadge.js
@@ -24,7 +24,10 @@ export default function LogBoxNotificationCountBadge(props: {
        * when fixing the type of `StyleSheet.create`. Remove this comment to
        * see the error. */}
       <View style={[styles.inside, styles[props.level]]}>
-        <Text id="logbox_notification_count_text" style={styles.text}>
+        <Text
+          id="logbox_notification_count_text"
+          maxFontSizeMultiplier={1}
+          style={styles.text}>
           {props.count <= 1 ? '!' : props.count}
         </Text>
       </View>
diff --git a/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationMessage.js b/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationMessage.js
index ae5c182ae838..2243da1fb1bc 100644
--- a/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationMessage.js
+++ b/packages/react-native/Libraries/LogBox/UI/LogBoxNotificationMessage.js
@@ -24,6 +24,7 @@ export default function LogBoxNotificationMessage(props: {
     <View style={styles.container}>
       <Text
         id="logbox_notification_message_text"
+        maxFontSizeMultiplier={1}
         numberOfLines={1}
         style={styles.text}>
         {props.message && (
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorCodeFrame-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorCodeFrame-test.js.snap
index a1dd32e9e801..79c187987664 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorCodeFrame-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorCodeFrame-test.js.snap
@@ -69,6 +69,7 @@ exports[`LogBoxInspectorCodeFrame should dedupe if code frames are the same 1`]
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.5)",
@@ -156,6 +157,7 @@ exports[`LogBoxInspectorCodeFrame should render a code frame 1`] = `
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.5)",
@@ -243,6 +245,7 @@ exports[`LogBoxInspectorCodeFrame should render a code frame without a location
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.5)",
@@ -331,6 +334,7 @@ exports[`LogBoxInspectorCodeFrame should render both a code frame and a componen
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.5)",
@@ -412,6 +416,7 @@ exports[`LogBoxInspectorCodeFrame should render both a code frame and a componen
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.5)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorFooter-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorFooter-test.js.snap
index 57412c533f20..657ddf88f303 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorFooter-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorFooter-test.js.snap
@@ -25,6 +25,7 @@ exports[`LogBoxInspectorFooter should render no buttons and a message for syntax
   >
     <Text
       id="logbox_dismissable_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Object {
           "color": "rgba(255, 255, 255, 0.6)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorHeader-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorHeader-test.js.snap
index 5e8fbb4738ce..182b676b5626 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorHeader-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorHeader-test.js.snap
@@ -38,6 +38,7 @@ exports[`LogBoxInspectorHeader should render both buttons for two total 1`] = `
     >
       <Text
         id="logbox_header_title_text"
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 1)",
@@ -104,6 +105,7 @@ exports[`LogBoxInspectorHeader should render no buttons for one total 1`] = `
     >
       <Text
         id="logbox_header_title_text"
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 1)",
@@ -159,6 +161,7 @@ exports[`LogBoxInspectorHeader should render syntax error header 1`] = `
     >
       <Text
         id="logbox_header_title_text"
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 1)",
@@ -214,6 +217,7 @@ exports[`LogBoxInspectorHeader should render two buttons for three or more total
     >
       <Text
         id="logbox_header_title_text"
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 1)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorMessageHeader-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorMessageHeader-test.js.snap
index afd770c5b369..99881a4601fe 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorMessageHeader-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorMessageHeader-test.js.snap
@@ -29,6 +29,7 @@ exports[`LogBoxInspectorMessageHeader should not render "See More" if expanded 1
   >
     <Text
       id="logbox_message_title_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -49,6 +50,7 @@ exports[`LogBoxInspectorMessageHeader should not render "See More" if expanded 1
   </View>
   <Text
     id="logbox_message_contents_text"
+    maxFontSizeMultiplier={1.5}
     style={
       Object {
         "color": "rgba(255, 255, 255, 1)",
@@ -108,6 +110,7 @@ exports[`LogBoxInspectorMessageHeader should not render See More button for shor
   >
     <Text
       id="logbox_message_title_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -128,6 +131,7 @@ exports[`LogBoxInspectorMessageHeader should not render See More button for shor
   </View>
   <Text
     id="logbox_message_contents_text"
+    maxFontSizeMultiplier={1.5}
     style={
       Object {
         "color": "rgba(255, 255, 255, 1)",
@@ -187,6 +191,7 @@ exports[`LogBoxInspectorMessageHeader should render "See More" if collapsed 1`]
   >
     <Text
       id="logbox_message_title_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -207,6 +212,7 @@ exports[`LogBoxInspectorMessageHeader should render "See More" if collapsed 1`]
   </View>
   <Text
     id="logbox_message_contents_text"
+    maxFontSizeMultiplier={1.5}
     style={
       Object {
         "color": "rgba(255, 255, 255, 1)",
@@ -234,6 +240,7 @@ exports[`LogBoxInspectorMessageHeader should render "See More" if collapsed 1`]
       }
     />
     <Text
+      maxFontSizeMultiplier={1.5}
       onPress={[Function]}
       style={
         Object {
@@ -279,6 +286,7 @@ exports[`LogBoxInspectorMessageHeader should render error 1`] = `
   >
     <Text
       id="logbox_message_title_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -299,6 +307,7 @@ exports[`LogBoxInspectorMessageHeader should render error 1`] = `
   </View>
   <Text
     id="logbox_message_contents_text"
+    maxFontSizeMultiplier={1.5}
     style={
       Object {
         "color": "rgba(255, 255, 255, 1)",
@@ -358,6 +367,7 @@ exports[`LogBoxInspectorMessageHeader should render fatal 1`] = `
   >
     <Text
       id="logbox_message_title_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -378,6 +388,7 @@ exports[`LogBoxInspectorMessageHeader should render fatal 1`] = `
   </View>
   <Text
     id="logbox_message_contents_text"
+    maxFontSizeMultiplier={1.5}
     style={
       Object {
         "color": "rgba(255, 255, 255, 1)",
@@ -437,6 +448,7 @@ exports[`LogBoxInspectorMessageHeader should render syntax error 1`] = `
   >
     <Text
       id="logbox_message_title_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -457,6 +469,7 @@ exports[`LogBoxInspectorMessageHeader should render syntax error 1`] = `
   </View>
   <Text
     id="logbox_message_contents_text"
+    maxFontSizeMultiplier={1.5}
     style={
       Object {
         "color": "rgba(255, 255, 255, 1)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorReactFrames-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorReactFrames-test.js.snap
index 21e3bdf2204b..167b1101f3c4 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorReactFrames-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorReactFrames-test.js.snap
@@ -39,6 +39,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with ful
       >
         <Text
           id="logbox_component_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 1)",
@@ -50,6 +51,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with ful
           }
         >
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -65,6 +67,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with ful
           </Text>
           MyComponent
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -81,6 +84,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with ful
         </Text>
       </View>
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -120,6 +124,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with ful
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -176,6 +181,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
       >
         <Text
           id="logbox_component_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 1)",
@@ -187,6 +193,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
           }
         >
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -202,6 +209,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
           </Text>
           MyComponent
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -218,6 +226,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
         </Text>
       </View>
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -269,6 +278,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
       >
         <Text
           id="logbox_component_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 1)",
@@ -280,6 +290,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
           }
         >
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -295,6 +306,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
           </Text>
           MyComponent2
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -311,6 +323,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
         </Text>
       </View>
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -362,6 +375,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
       >
         <Text
           id="logbox_component_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 1)",
@@ -373,6 +387,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
           }
         >
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -388,6 +403,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
           </Text>
           MyComponent3
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -404,6 +420,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
         </Text>
       </View>
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -443,6 +460,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with mor
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -501,6 +519,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with par
       >
         <Text
           id="logbox_component_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 1)",
@@ -512,6 +531,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with par
           }
         >
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -527,6 +547,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with par
           </Text>
           MyComponent
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -543,6 +564,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with par
         </Text>
       </View>
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -582,6 +604,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames with par
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -638,6 +661,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames without
       >
         <Text
           id="logbox_component_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 1)",
@@ -649,6 +673,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames without
           }
         >
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -664,6 +689,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames without
           </Text>
           MyComponent
           <Text
+            maxFontSizeMultiplier={1.5}
             style={
               Object {
                 "color": "rgba(255, 255, 255, 0.4)",
@@ -680,6 +706,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames without
         </Text>
       </View>
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -719,6 +746,7 @@ exports[`LogBoxInspectorReactFrames should render componentStack frames without
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSection-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSection-test.js.snap
index 32d5bc4e9acb..7a61c42d3b2e 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSection-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSection-test.js.snap
@@ -19,6 +19,7 @@ exports[`LogBoxInspectorSection should render with action on the right 1`] = `
     }
   >
     <Text
+      maxFontSizeMultiplier={1.5}
       style={
         Object {
           "color": "rgba(255, 255, 255, 1)",
@@ -69,6 +70,7 @@ exports[`LogBoxInspectorSection should render with only heading 1`] = `
     }
   >
     <Text
+      maxFontSizeMultiplier={1.5}
       style={
         Object {
           "color": "rgba(255, 255, 255, 1)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSourceMapStatus-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSourceMapStatus-test.js.snap
index bbc3ed47a0ba..dc30c83cdb17 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSourceMapStatus-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorSourceMapStatus-test.js.snap
@@ -44,6 +44,7 @@ exports[`LogBoxInspectorSourceMapStatus should render for failed 1`] = `
     }
   />
   <Text
+    maxFontSizeMultiplier={1.5}
     style={
       Array [
         Object {
@@ -111,6 +112,7 @@ exports[`LogBoxInspectorSourceMapStatus should render for pending 1`] = `
     }
   />
   <Text
+    maxFontSizeMultiplier={1.5}
     style={
       Array [
         Object {
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrame-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrame-test.js.snap
index 57ab537dc8cd..c9c7033b9822 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrame-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrame-test.js.snap
@@ -28,6 +28,7 @@ exports[`LogBoxInspectorStackFrame should render collapsed stack frame with dimm
   >
     <Text
       id="logbox_stack_frame_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -49,6 +50,7 @@ exports[`LogBoxInspectorStackFrame should render collapsed stack frame with dimm
     </Text>
     <Text
       ellipsizeMode="middle"
+      maxFontSizeMultiplier={1.5}
       numberOfLines={1}
       style={
         Array [
@@ -101,6 +103,7 @@ exports[`LogBoxInspectorStackFrame should render stack frame 1`] = `
   >
     <Text
       id="logbox_stack_frame_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -119,6 +122,7 @@ exports[`LogBoxInspectorStackFrame should render stack frame 1`] = `
     </Text>
     <Text
       ellipsizeMode="middle"
+      maxFontSizeMultiplier={1.5}
       numberOfLines={1}
       style={
         Array [
@@ -168,6 +172,7 @@ exports[`LogBoxInspectorStackFrame should render stack frame without press feedb
   >
     <Text
       id="logbox_stack_frame_text"
+      maxFontSizeMultiplier={1.5}
       style={
         Array [
           Object {
@@ -186,6 +191,7 @@ exports[`LogBoxInspectorStackFrame should render stack frame without press feedb
     </Text>
     <Text
       ellipsizeMode="middle"
+      maxFontSizeMultiplier={1.5}
       numberOfLines={1}
       style={
         Array [
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrames-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrames-test.js.snap
index 1f2d479e266f..7d64c9c4c57b 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrames-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxInspectorStackFrames-test.js.snap
@@ -21,6 +21,7 @@ exports[`LogBoxInspectorStackFrames should render stack frames with 1 frame coll
     }
   >
     <Text
+      maxFontSizeMultiplier={1.5}
       style={
         Object {
           "color": "rgba(255, 255, 255, 1)",
@@ -55,6 +56,7 @@ exports[`LogBoxInspectorStackFrames should render stack frames with 1 frame coll
       }
     >
       <Text
+        maxFontSizeMultiplier={1.5}
         style={
           Object {
             "color": "rgba(255, 255, 255, 0.7)",
@@ -123,6 +125,7 @@ exports[`LogBoxInspectorStackFrames should render stack frames with 1 frame coll
       >
         <Text
           id="logbox_stack_frame_text"
+          maxFontSizeMultiplier={1.5}
           style={
             Array [
               Object {
@@ -141,6 +144,7 @@ exports[`LogBoxInspectorStackFrames should render stack frames with 1 frame coll
         </Text>
         <Text
           ellipsizeMode="middle"
+          maxFontSizeMultiplier={1.5}
           numberOfLines={1}
           style={
             Array [
@@ -210,6 +214,7 @@ exports[`LogBoxInspectorStackFrames should render stack frames with 1 frame coll
         }
       >
         <Text
+          maxFontSizeMultiplier={1.5}
           style={
             Object {
               "color": "rgba(255, 255, 255, 0.7)",
diff --git a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxMessage-test.js.snap b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxMessage-test.js.snap
index d77bb1ffe708..4033fe9f1184 100644
--- a/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxMessage-test.js.snap
+++ b/packages/react-native/Libraries/LogBox/UI/__tests__/__snapshots__/LogBoxMessage-test.js.snap
@@ -1,8 +1,11 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`LogBoxMessage Should handle multiple links 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   <Text
+    maxFontSizeMultiplier={1.5}
     onPress={[Function]}
     style={
       Object {
@@ -12,10 +15,13 @@ exports[`LogBoxMessage Should handle multiple links 1`] = `
   >
     https://reactnative.dev
   </Text>
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
      and 
   </Text>
   <Text
+    maxFontSizeMultiplier={1.5}
     onPress={[Function]}
     style={
       Object {
@@ -29,8 +35,11 @@ exports[`LogBoxMessage Should handle multiple links 1`] = `
 `;
 
 exports[`LogBoxMessage Should handle truncated links 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   <Text
+    maxFontSizeMultiplier={1.5}
     onPress={[Function]}
     style={
       Object {
@@ -40,15 +49,20 @@ exports[`LogBoxMessage Should handle truncated links 1`] = `
   >
     https://reactnative.dev
   </Text>
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
      and https:/
   </Text>
 </Text>
 `;
 
 exports[`LogBoxMessage Should make links tappable 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   <Text
+    maxFontSizeMultiplier={1.5}
     onPress={[Function]}
     style={
       Object {
@@ -63,72 +77,95 @@ exports[`LogBoxMessage Should make links tappable 1`] = `
 
 exports[`LogBoxMessage Should strip "TransformError " without breaking substitution 1`] = `
 Array [
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
     normal 
   </Text>,
   <Text
+    maxFontSizeMultiplier={1.5}
     style={Object {}}
   >
     substitution
   </Text>,
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
      normal
   </Text>,
 ]
 `;
 
 exports[`LogBoxMessage should render a plaintext message and clean the content 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1}
+>
   This should not start with Error:
 </Text>
 `;
 
 exports[`LogBoxMessage should render a plaintext message with no substitutions 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1}
+>
   normal substitution normal
 </Text>
 `;
 
 exports[`LogBoxMessage should render message 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   Some kind of message
 </Text>
 `;
 
 exports[`LogBoxMessage should render message truncated to 6 chars 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   Some 
 </Text>
 `;
 
 exports[`LogBoxMessage should render message with substitution 1`] = `
 Array [
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
     normal 
   </Text>,
   <Text
+    maxFontSizeMultiplier={1.5}
     style={Object {}}
   >
     substitution
   </Text>,
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
      normal
   </Text>,
 ]
 `;
 
 exports[`LogBoxMessage should render message with substitution, truncating the first word 3 letters in 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   nor
 </Text>
 `;
 
 exports[`LogBoxMessage should render message with substitution, truncating the second word 6 letters in 1`] = `
 Array [
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
     normal 
   </Text>,
   <Text
+    maxFontSizeMultiplier={1.5}
     style={Object {}}
   >
     substi
@@ -138,37 +175,49 @@ Array [
 
 exports[`LogBoxMessage should render message with substitution, truncating the third word 2 letters in 1`] = `
 Array [
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
     normal 
   </Text>,
   <Text
+    maxFontSizeMultiplier={1.5}
     style={Object {}}
   >
     substitution
   </Text>,
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
      no
   </Text>,
 ]
 `;
 
 exports[`LogBoxMessage should render the whole message when maxLength = message length 1`] = `
-<Text>
+<Text
+  maxFontSizeMultiplier={1.5}
+>
   Some kind of message
 </Text>
 `;
 
 exports[`LogBoxMessage should render the whole message with substitutions when maxLength = message length 1`] = `
 Array [
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
     normal 
   </Text>,
   <Text
+    maxFontSizeMultiplier={1.5}
     style={Object {}}
   >
     substitution
   </Text>,
-  <Text>
+  <Text
+    maxFontSizeMultiplier={1.5}
+  >
      normal
   </Text>,
 ]