diff --git a/packages/passport/sdk/src/authManager.test.ts b/packages/passport/sdk/src/authManager.test.ts
index 011acdc4dd..ec7b4b4c65 100644
--- a/packages/passport/sdk/src/authManager.test.ts
+++ b/packages/passport/sdk/src/authManager.test.ts
@@ -301,6 +301,28 @@ describe('AuthManager', () => {
       });
     });
 
+    describe('when the token contains a username', () => {
+      it('should extract username from the top level of the id token', async () => {
+        mockSigninPopup.mockResolvedValue(mockOidcUser);
+        (jwt_decode as jest.Mock).mockReturnValue({
+          username: 'username123',
+          email: mockUser.profile.email,
+          nickname: mockUser.profile.nickname,
+          sub: mockUser.profile.sub,
+        });
+
+        const result = await authManager.login();
+
+        expect(result).toEqual({
+          ...mockUser,
+          profile: {
+            ...mockUser.profile,
+            username: 'username123',
+          },
+        });
+      });
+    });
+
     it('should throw the error if user is failed to login', async () => {
       mockSigninPopup.mockImplementation(() => {
         throw new Error(mockErrorMsg);
diff --git a/packages/passport/sdk/src/authManager.ts b/packages/passport/sdk/src/authManager.ts
index 17696d81ab..36128b4314 100644
--- a/packages/passport/sdk/src/authManager.ts
+++ b/packages/passport/sdk/src/authManager.ts
@@ -129,8 +129,13 @@ export default class AuthManager {
 
   private static mapOidcUserToDomainModel = (oidcUser: OidcUser): User => {
     let passport: PassportMetadata | undefined;
+    let username: string | undefined;
     if (oidcUser.id_token) {
-      passport = jwt_decode<IdTokenPayload>(oidcUser.id_token)?.passport;
+      const idTokenPayload = jwt_decode<IdTokenPayload>(oidcUser.id_token);
+      passport = idTokenPayload?.passport;
+      if (idTokenPayload?.username) {
+        username = idTokenPayload?.username;
+      }
     }
 
     const user: User = {
@@ -142,6 +147,7 @@ export default class AuthManager {
         sub: oidcUser.profile.sub,
         email: oidcUser.profile.email,
         nickname: oidcUser.profile.nickname,
+        username,
       },
     };
     if (passport?.imx_eth_address) {
@@ -163,7 +169,7 @@ export default class AuthManager {
   private static mapDeviceTokenResponseToOidcUser = (tokenResponse: DeviceTokenResponse): OidcUser => {
     const idTokenPayload: IdTokenPayload = jwt_decode(tokenResponse.id_token);
 
-    return new OidcUser({
+    const oidcUser = new OidcUser({
       id_token: tokenResponse.id_token,
       access_token: tokenResponse.access_token,
       refresh_token: tokenResponse.refresh_token,
@@ -179,6 +185,12 @@ export default class AuthManager {
         passport: idTokenPayload.passport,
       },
     });
+
+    const { username } = idTokenPayload;
+    if (username) {
+      oidcUser.profile.username = username;
+    }
+    return oidcUser;
   };
 
   private buildExtraQueryParams(
diff --git a/packages/passport/sdk/src/types.ts b/packages/passport/sdk/src/types.ts
index 43c929def8..fcadf3a851 100644
--- a/packages/passport/sdk/src/types.ts
+++ b/packages/passport/sdk/src/types.ts
@@ -34,6 +34,7 @@ export type UserProfile = {
   email?: string;
   nickname?: string;
   sub: string;
+  username?: string;
 };
 
 export enum RollupType {
@@ -150,6 +151,7 @@ export type IdTokenPayload = {
   passport?: PassportMetadata;
   email: string;
   nickname: string;
+  username?: string;
   aud: string;
   sub: string;
   exp: number;