diff --git a/packages/analytics-controller/CHANGELOG.md b/packages/analytics-controller/CHANGELOG.md
index 88710f6ee0f..a1e26a2aba6 100644
--- a/packages/analytics-controller/CHANGELOG.md
+++ b/packages/analytics-controller/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Optional `skipUUIDv4Check` on `AnalyticsPlatformAdapter` to allow non-UUIDv4 `analyticsId` strings when constructing `AnalyticsController` ([#8543](https://github.com/MetaMask/core/pull/8543))
+
 ### Changed
 
 - Bump `@metamask/messenger` from `^1.0.0` to `^1.1.1` ([#8364](https://github.com/MetaMask/core/pull/8364), [#8373](https://github.com/MetaMask/core/pull/8373))
diff --git a/packages/analytics-controller/src/AnalyticsController.test.ts b/packages/analytics-controller/src/AnalyticsController.test.ts
index e6c9a43a32b..e012047a27f 100644
--- a/packages/analytics-controller/src/AnalyticsController.test.ts
+++ b/packages/analytics-controller/src/AnalyticsController.test.ts
@@ -377,6 +377,26 @@ describe('AnalyticsController', () => {
       }).toThrow('Invalid analyticsId');
     });
 
+    it('accepts non-UUID analyticsId when adapter skipUUIDv4Check is true', async () => {
+      const analyticsId = 'not-a-uuid';
+      const platformAdapter = {
+        ...createMockAdapter(),
+        skipUUIDv4Check: true,
+      };
+      const { controller } = await setupController({
+        state: {
+          optedIn: false,
+          analyticsId,
+        },
+        platformAdapter,
+      });
+
+      expect(controller.state.analyticsId).toBe(analyticsId);
+      expect(platformAdapter.onSetupCompleted).toHaveBeenCalledWith(
+        analyticsId,
+      );
+    });
+
     it('accepts different valid UUIDv4 values', async () => {
       const analyticsId1 = '11111111-1111-4111-8111-111111111111';
       const analyticsId2 = '22222222-2222-4222-9222-222222222222';
diff --git a/packages/analytics-controller/src/AnalyticsController.ts b/packages/analytics-controller/src/AnalyticsController.ts
index 352b1702475..8f87062be92 100644
--- a/packages/analytics-controller/src/AnalyticsController.ts
+++ b/packages/analytics-controller/src/AnalyticsController.ts
@@ -219,7 +219,10 @@ export class AnalyticsController extends BaseController<
       ...state,
     };
 
-    validateAnalyticsControllerState(initialState);
+    validateAnalyticsControllerState(
+      initialState,
+      platformAdapter.skipUUIDv4Check === true,
+    );
 
     super({
       name: controllerName,
diff --git a/packages/analytics-controller/src/AnalyticsPlatformAdapter.types.ts b/packages/analytics-controller/src/AnalyticsPlatformAdapter.types.ts
index 39d22ff5928..78485ba6f4f 100644
--- a/packages/analytics-controller/src/AnalyticsPlatformAdapter.types.ts
+++ b/packages/analytics-controller/src/AnalyticsPlatformAdapter.types.ts
@@ -33,6 +33,12 @@ export type AnalyticsTrackingEvent = {
  * Implementations should handle platform-specific details (Segment SDK, etc.)
  */
 export type AnalyticsPlatformAdapter = {
+  /**
+   * When `true`, the controller accepts any non-empty `analyticsId` string
+   * instead of requiring UUIDv4 format. Defaults to validation against UUIDv4 when omitted or `false`.
+   */
+  skipUUIDv4Check?: boolean;
+
   /**
    * Track an analytics event.
    *
diff --git a/packages/analytics-controller/src/analyticsControllerStateValidator.test.ts b/packages/analytics-controller/src/analyticsControllerStateValidator.test.ts
index b36dee38163..2e1dea9c964 100644
--- a/packages/analytics-controller/src/analyticsControllerStateValidator.test.ts
+++ b/packages/analytics-controller/src/analyticsControllerStateValidator.test.ts
@@ -47,5 +47,36 @@ describe('analyticsControllerStateValidator', () => {
 
       expect(() => validateAnalyticsControllerState(state)).not.toThrow();
     });
+
+    it('does not throw for non-UUID string when skipUUIDv4Check is true', () => {
+      const state: AnalyticsControllerState = {
+        optedIn: false,
+        analyticsId: 'not-a-uuid',
+      };
+
+      expect(() => validateAnalyticsControllerState(state, true)).not.toThrow();
+    });
+
+    it('throws when analyticsId is not UUIDv4 and skipUUIDv4Check is false', () => {
+      const state: AnalyticsControllerState = {
+        optedIn: false,
+        analyticsId: 'not-a-uuid',
+      };
+
+      expect(() => validateAnalyticsControllerState(state, false)).toThrow(
+        'Invalid analyticsId',
+      );
+    });
+
+    it('throws when analyticsId is empty string even if skipUUIDv4Check is true', () => {
+      const state: AnalyticsControllerState = {
+        optedIn: false,
+        analyticsId: '',
+      };
+
+      expect(() => validateAnalyticsControllerState(state, true)).toThrow(
+        'Invalid analyticsId',
+      );
+    });
   });
 });
diff --git a/packages/analytics-controller/src/analyticsControllerStateValidator.ts b/packages/analytics-controller/src/analyticsControllerStateValidator.ts
index 1713a9731bb..f40773994d2 100644
--- a/packages/analytics-controller/src/analyticsControllerStateValidator.ts
+++ b/packages/analytics-controller/src/analyticsControllerStateValidator.ts
@@ -24,12 +24,17 @@ export function isValidUUIDv4(value: string): boolean {
  * Validates that the analytics state has a valid UUIDv4 analyticsId.
  *
  * @param state - The analytics controller state to validate
+ * @param skipUUIDv4Check - When `true`, skips UUIDv4 format validation
  * @throws Error if analyticsId is missing or not a valid UUIDv4
  */
 export function validateAnalyticsControllerState(
   state: AnalyticsControllerState,
+  skipUUIDv4Check?: boolean,
 ): void {
-  if (!state.analyticsId || !isValidUUIDv4(state.analyticsId)) {
+  if (
+    !state.analyticsId ||
+    (skipUUIDv4Check !== true && !isValidUUIDv4(state.analyticsId))
+  ) {
     throw new Error('Invalid analyticsId');
   }
 }