diff --git a/.changeset/ninety-dancers-bow.md b/.changeset/ninety-dancers-bow.md
new file mode 100644
index 0000000000..dc8bd7b702
--- /dev/null
+++ b/.changeset/ninety-dancers-bow.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend-module-msgraph': patch
+---
+
+Add userExpand option to allow users to expand fields retrieved from the Graph API - for use in custom transformers
diff --git a/plugins/catalog-backend-module-msgraph/api-report.md b/plugins/catalog-backend-module-msgraph/api-report.md
index c00930d2ce..4f5d247a06 100644
--- a/plugins/catalog-backend-module-msgraph/api-report.md
+++ b/plugins/catalog-backend-module-msgraph/api-report.md
@@ -149,6 +149,7 @@ export type MicrosoftGraphProviderConfig = {
   clientId: string;
   clientSecret: string;
   userFilter?: string;
+  userExpand?: string[];
   userGroupMemberFilter?: string;
   groupFilter?: string;
 };
@@ -178,6 +179,7 @@ export function readMicrosoftGraphOrg(
   client: MicrosoftGraphClient,
   tenantId: string,
   options: {
+    userExpand?: string[];
     userFilter?: string;
     userGroupMemberFilter?: string;
     groupFilter?: string;
diff --git a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/config.ts b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/config.ts
index 4d37e24632..c401bc2553 100644
--- a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/config.ts
+++ b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/config.ts
@@ -52,6 +52,12 @@ export type MicrosoftGraphProviderConfig = {
    * E.g. "accountEnabled eq true and userType eq 'member'"
    */
   userFilter?: string;
+  /**
+   * The expand argument to apply to users.
+   *
+   * E.g. "manager"
+   */
+  userExpand?: string[];
   /**
    * The filter to apply to extract users by groups memberships.
    *
diff --git a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts
index b2845ac78d..58e60ab76a 100644
--- a/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts
+++ b/plugins/catalog-backend-module-msgraph/src/microsoftGraph/read.ts
@@ -85,6 +85,7 @@ export async function readMicrosoftGraphUsers(
   client: MicrosoftGraphClient,
   options: {
     userFilter?: string;
+    userExpand?: string[];
     transformer?: UserTransformer;
     logger: Logger;
   },
@@ -99,6 +100,7 @@ export async function readMicrosoftGraphUsers(
 
   for await (const user of client.getUsers({
     filter: options.userFilter,
+    expand: options.userExpand,
   })) {
     // Process all users in parallel, otherwise it can take quite some time
     promises.push(
@@ -500,6 +502,7 @@ export async function readMicrosoftGraphOrg(
   client: MicrosoftGraphClient,
   tenantId: string,
   options: {
+    userExpand?: string[];
     userFilter?: string;
     userGroupMemberFilter?: string;
     groupFilter?: string;
@@ -524,6 +527,7 @@ export async function readMicrosoftGraphOrg(
   } else {
     const { users: usersWithFilter } = await readMicrosoftGraphUsers(client, {
       userFilter: options.userFilter,
+      userExpand: options.userExpand,
       transformer: options.userTransformer,
       logger: options.logger,
     });
diff --git a/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts b/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts
index 351a4983d9..e0e63d86fc 100644
--- a/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts
+++ b/plugins/catalog-backend-module-msgraph/src/processors/MicrosoftGraphOrgReaderProcessor.ts
@@ -102,6 +102,7 @@ export class MicrosoftGraphOrgReaderProcessor implements CatalogProcessor {
       client,
       provider.tenantId,
       {
+        userExpand: provider.userExpand,
         userFilter: provider.userFilter,
         userGroupMemberFilter: provider.userGroupMemberFilter,
         groupFilter: provider.groupFilter,