diff --git a/packages/react-native-codegen/src/parsers/flow/modules/__test_fixtures__/fixtures.js b/packages/react-native-codegen/src/parsers/flow/modules/__test_fixtures__/fixtures.js
index 2ff2a4653be..8342d6a1d77 100644
--- a/packages/react-native-codegen/src/parsers/flow/modules/__test_fixtures__/fixtures.js
+++ b/packages/react-native-codegen/src/parsers/flow/modules/__test_fixtures__/fixtures.js
@@ -122,6 +122,7 @@ export interface Spec extends TurboModule {
   +passBool?: (arg: boolean) => void;
   +passNumber: (arg: number) => void;
   +passString: (arg: string) => void;
+  +passStringish: (arg: Stringish) => void;
 }
 
 export default TurboModuleRegistry.getEnforcing<Spec>('SampleTurboModule');
diff --git a/packages/react-native-codegen/src/parsers/flow/modules/__tests__/__snapshots__/module-parser-test.js.snap b/packages/react-native-codegen/src/parsers/flow/modules/__tests__/__snapshots__/module-parser-test.js.snap
index cb5f2741167..3dac11c9d9c 100644
--- a/packages/react-native-codegen/src/parsers/flow/modules/__tests__/__snapshots__/module-parser-test.js.snap
+++ b/packages/react-native-codegen/src/parsers/flow/modules/__tests__/__snapshots__/module-parser-test.js.snap
@@ -177,6 +177,25 @@ Object {
                 "type": "FunctionTypeAnnotation",
               },
             },
+            Object {
+              "name": "passStringish",
+              "typeAnnotation": Object {
+                "optional": false,
+                "params": Array [
+                  Object {
+                    "name": "arg",
+                    "nullable": false,
+                    "typeAnnotation": Object {
+                      "type": "StringTypeAnnotation",
+                    },
+                  },
+                ],
+                "returnTypeAnnotation": Object {
+                  "type": "VoidTypeAnnotation",
+                },
+                "type": "FunctionTypeAnnotation",
+              },
+            },
           ],
         },
       },
diff --git a/packages/react-native-codegen/src/parsers/flow/modules/methods.js b/packages/react-native-codegen/src/parsers/flow/modules/methods.js
index b8cff9a78c6..1d0ffb3dac2 100644
--- a/packages/react-native-codegen/src/parsers/flow/modules/methods.js
+++ b/packages/react-native-codegen/src/parsers/flow/modules/methods.js
@@ -97,10 +97,14 @@ function getElementTypeForArrayOrObject(
       };
     case 'NumberTypeAnnotation':
     case 'BooleanTypeAnnotation':
-    case 'StringTypeAnnotation':
       return {
         type,
       };
+    case 'StringTypeAnnotation':
+    case 'Stringish':
+      return {
+        type: 'StringTypeAnnotation',
+      };
     case 'Int32':
       return {
         type: 'Int32TypeAnnotation',
@@ -201,7 +205,6 @@ function getTypeAnnotationForParam(
       };
     case 'NumberTypeAnnotation':
     case 'BooleanTypeAnnotation':
-    case 'StringTypeAnnotation':
       return {
         nullable,
         name: paramName,
@@ -209,6 +212,16 @@ function getTypeAnnotationForParam(
           type,
         },
       };
+
+    case 'StringTypeAnnotation':
+    case 'Stringish':
+      return {
+        nullable,
+        name: paramName,
+        typeAnnotation: {
+          type: 'StringTypeAnnotation',
+        },
+      };
     case 'Int32':
       return {
         nullable,
@@ -298,11 +311,16 @@ function getReturnTypeAnnotation(
 
     case 'BooleanTypeAnnotation':
     case 'NumberTypeAnnotation':
-    case 'StringTypeAnnotation':
     case 'VoidTypeAnnotation':
       return {
         type,
       };
+    case 'StringTypeAnnotation':
+    case 'Stringish':
+      return {
+        type: 'StringTypeAnnotation',
+      };
+
     case 'Int32':
       return {
         type: 'Int32TypeAnnotation',