diff --git a/.changeset/shy-pets-join.md b/.changeset/shy-pets-join.md
new file mode 100644
index 0000000000..ba39dfd4f4
--- /dev/null
+++ b/.changeset/shy-pets-join.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend-module-msgraph': patch
+---
+
+Pass along a `UserTransformer` to the read step
diff --git a/plugins/catalog-backend-module-msgraph/api-report.md b/plugins/catalog-backend-module-msgraph/api-report.md
index 91f8180e94..f614bdca36 100644
--- a/plugins/catalog-backend-module-msgraph/api-report.md
+++ b/plugins/catalog-backend-module-msgraph/api-report.md
@@ -111,6 +111,7 @@ export class MicrosoftGraphOrgReaderProcessor implements CatalogProcessor {
   constructor(options: {
     providers: MicrosoftGraphProviderConfig[];
     logger: Logger_2;
+    userTransformer?: UserTransformer;
     groupTransformer?: GroupTransformer;
   });
   // (undocumented)
@@ -118,6 +119,7 @@ export class MicrosoftGraphOrgReaderProcessor implements CatalogProcessor {
     config: Config,
     options: {
       logger: Logger_2;
+      userTransformer?: UserTransformer;
       groupTransformer?: GroupTransformer;
     },
   ): MicrosoftGraphOrgReaderProcessor;
@@ -170,6 +172,7 @@ export function readMicrosoftGraphOrg(
   options: {
     userFilter?: string;
     groupFilter?: string;
+    userTransformer?: UserTransformer;
     groupTransformer?: GroupTransformer;
     logger: Logger_2;
   },
diff --git a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.test.ts b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.test.ts
index 68f7e216ea..82279b76c6 100644
--- a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.test.ts
+++ b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.test.ts
@@ -114,6 +114,48 @@ describe('read microsoft graph', () => {
       expect(client.getUserPhotoWithSizeLimit).toBeCalledTimes(1);
       expect(client.getUserPhotoWithSizeLimit).toBeCalledWith('userid', 120);
     });
+
+    it('should read users with custom transformer', async () => {
+      async function* getExampleUsers() {
+        yield {
+          id: 'userid',
+          displayName: 'User Name',
+          mail: 'user.name@example.com',
+        };
+      }
+
+      client.getUsers.mockImplementation(getExampleUsers);
+      client.getUserPhotoWithSizeLimit.mockResolvedValue(
+        'data:image/jpeg;base64,...',
+      );
+
+      const { users } = await readMicrosoftGraphUsers(client, {
+        userFilter: 'accountEnabled eq true',
+        transformer: async () => ({
+          apiVersion: 'backstage.io/v1alpha1',
+          kind: 'User',
+          metadata: { name: 'x' },
+          spec: { memberOf: [] },
+        }),
+        logger: getVoidLogger(),
+      });
+
+      expect(users).toEqual([
+        {
+          apiVersion: 'backstage.io/v1alpha1',
+          kind: 'User',
+          metadata: { name: 'x' },
+          spec: { memberOf: [] },
+        },
+      ]);
+
+      expect(client.getUsers).toBeCalledTimes(1);
+      expect(client.getUsers).toBeCalledWith({
+        filter: 'accountEnabled eq true',
+      });
+      expect(client.getUserPhotoWithSizeLimit).toBeCalledTimes(1);
+      expect(client.getUserPhotoWithSizeLimit).toBeCalledWith('userid', 120);
+    });
   });
 
   describe('readMicrosoftGraphOrganization', () => {
diff --git a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts
index 62513b0e10..6fbd2cb0de 100644
--- a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts
+++ b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts
@@ -382,12 +382,14 @@ export async function readMicrosoftGraphOrg(
   options: {
     userFilter?: string;
     groupFilter?: string;
+    userTransformer?: UserTransformer;
     groupTransformer?: GroupTransformer;
     logger: Logger;
   },
 ): Promise<{ users: UserEntity[]; groups: GroupEntity[] }> {
   const { users } = await readMicrosoftGraphUsers(client, {
     userFilter: options.userFilter,
+    transformer: options.userTransformer,
     logger: options.logger,
   });
   const { groups, rootGroup, groupMember, groupMemberOf } =
diff --git a/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts b/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts
index 88240db618..1495bce93c 100644
--- a/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts
+++ b/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts
@@ -28,6 +28,7 @@ import {
   MicrosoftGraphProviderConfig,
   readMicrosoftGraphConfig,
   readMicrosoftGraphOrg,
+  UserTransformer,
 } from '../microsoftGraph';
 
 /**
@@ -36,11 +37,16 @@ import {
 export class MicrosoftGraphOrgReaderProcessor implements CatalogProcessor {
   private readonly providers: MicrosoftGraphProviderConfig[];
   private readonly logger: Logger;
+  private readonly userTransformer?: UserTransformer;
   private readonly groupTransformer?: GroupTransformer;
 
   static fromConfig(
     config: Config,
-    options: { logger: Logger; groupTransformer?: GroupTransformer },
+    options: {
+      logger: Logger;
+      userTransformer?: UserTransformer;
+      groupTransformer?: GroupTransformer;
+    },
   ) {
     const c = config.getOptionalConfig('catalog.processors.microsoftGraphOrg');
     return new MicrosoftGraphOrgReaderProcessor({
@@ -52,10 +58,12 @@ export class MicrosoftGraphOrgReaderProcessor implements CatalogProcessor {
   constructor(options: {
     providers: MicrosoftGraphProviderConfig[];
     logger: Logger;
+    userTransformer?: UserTransformer;
     groupTransformer?: GroupTransformer;
   }) {
     this.providers = options.providers;
     this.logger = options.logger;
+    this.userTransformer = options.userTransformer;
     this.groupTransformer = options.groupTransformer;
   }
 
@@ -89,6 +97,7 @@ export class MicrosoftGraphOrgReaderProcessor implements CatalogProcessor {
       {
         userFilter: provider.userFilter,
         groupFilter: provider.groupFilter,
+        userTransformer: this.userTransformer,
         groupTransformer: this.groupTransformer,
         logger: this.logger,
       },