diff --git a/apps/api/src/integration-platform/controllers/sync-ou-filter.spec.ts b/apps/api/src/integration-platform/controllers/sync-ou-filter.spec.ts
new file mode 100644
index 000000000..83622c05d
--- /dev/null
+++ b/apps/api/src/integration-platform/controllers/sync-ou-filter.spec.ts
@@ -0,0 +1,90 @@
+import { filterUsersByOrgUnits } from './sync-ou-filter';
+
+interface TestUser {
+  primaryEmail: string;
+  orgUnitPath: string;
+  suspended?: boolean;
+}
+
+describe('filterUsersByOrgUnits', () => {
+  const users: TestUser[] = [
+    { primaryEmail: 'alice@example.com', orgUnitPath: '/' },
+    { primaryEmail: 'bob@example.com', orgUnitPath: '/Engineering' },
+    { primaryEmail: 'carol@example.com', orgUnitPath: '/Engineering/Frontend' },
+    { primaryEmail: 'dave@example.com', orgUnitPath: '/Marketing' },
+    { primaryEmail: 'eve@example.com', orgUnitPath: '/HR' },
+    {
+      primaryEmail: 'frank@example.com',
+      orgUnitPath: '/Unlisted',
+      suspended: true,
+    },
+  ];
+
+  it('returns all users when no target OUs specified', () => {
+    const result = filterUsersByOrgUnits(users, undefined);
+    expect(result).toEqual(users);
+  });
+
+  it('returns all users when target OUs is an empty array', () => {
+    const result = filterUsersByOrgUnits(users, []);
+    expect(result).toEqual(users);
+  });
+
+  it('filters users to only those in selected OUs', () => {
+    const result = filterUsersByOrgUnits(users, ['/Engineering']);
+    expect(result.map((u) => u.primaryEmail)).toEqual([
+      'bob@example.com',
+      'carol@example.com',
+    ]);
+  });
+
+  it('includes users in child OUs of selected OUs', () => {
+    const result = filterUsersByOrgUnits(users, ['/Engineering']);
+    expect(result.map((u) => u.primaryEmail)).toContain('carol@example.com');
+  });
+
+  it('exact match on OU path works', () => {
+    const result = filterUsersByOrgUnits(users, ['/Engineering/Frontend']);
+    expect(result.map((u) => u.primaryEmail)).toEqual(['carol@example.com']);
+  });
+
+  it('supports multiple target OUs', () => {
+    const result = filterUsersByOrgUnits(users, ['/Engineering', '/Marketing']);
+    expect(result.map((u) => u.primaryEmail)).toEqual([
+      'bob@example.com',
+      'carol@example.com',
+      'dave@example.com',
+    ]);
+  });
+
+  it('root OU includes all users', () => {
+    const result = filterUsersByOrgUnits(users, ['/']);
+    expect(result).toEqual(users);
+  });
+
+  it('excludes users not in any selected OU', () => {
+    const result = filterUsersByOrgUnits(users, ['/Engineering']);
+    const emails = result.map((u) => u.primaryEmail);
+    expect(emails).not.toContain('alice@example.com');
+    expect(emails).not.toContain('dave@example.com');
+    expect(emails).not.toContain('eve@example.com');
+    expect(emails).not.toContain('frank@example.com');
+  });
+
+  it('does not match partial OU path names', () => {
+    // /Eng should NOT match /Engineering
+    const result = filterUsersByOrgUnits(users, ['/Eng']);
+    expect(result).toEqual([]);
+  });
+
+  it('preserves suspended user status through filtering', () => {
+    const result = filterUsersByOrgUnits(users, ['/Unlisted']);
+    expect(result).toEqual([
+      {
+        primaryEmail: 'frank@example.com',
+        orgUnitPath: '/Unlisted',
+        suspended: true,
+      },
+    ]);
+  });
+});
diff --git a/apps/api/src/integration-platform/controllers/sync-ou-filter.ts b/apps/api/src/integration-platform/controllers/sync-ou-filter.ts
new file mode 100644
index 000000000..c29070c95
--- /dev/null
+++ b/apps/api/src/integration-platform/controllers/sync-ou-filter.ts
@@ -0,0 +1,23 @@
+/**
+ * Filters users by organizational unit paths.
+ * Matches users whose orgUnitPath equals or is a child of any target OU.
+ *
+ * @param users - Array of objects with an orgUnitPath property
+ * @param targetOrgUnits - Array of OU paths to include (undefined/empty = all users)
+ * @returns Filtered array of users
+ */
+export function filterUsersByOrgUnits<
+  T extends { orgUnitPath?: string },
+>(users: T[], targetOrgUnits: string[] | undefined): T[] {
+  if (!targetOrgUnits || targetOrgUnits.length === 0) {
+    return users;
+  }
+
+  return users.filter((user) => {
+    const userOu = user.orgUnitPath ?? '/';
+    return targetOrgUnits.some(
+      (ou) =>
+        ou === '/' || userOu === ou || userOu.startsWith(`${ou}/`),
+    );
+  });
+}
diff --git a/apps/api/src/integration-platform/controllers/sync.controller.ts b/apps/api/src/integration-platform/controllers/sync.controller.ts
index 07ecb378b..5b54fba09 100644
--- a/apps/api/src/integration-platform/controllers/sync.controller.ts
+++ b/apps/api/src/integration-platform/controllers/sync.controller.ts
@@ -33,6 +33,7 @@ import {
 import { RampRoleMappingService } from '../services/ramp-role-mapping.service';
 import { IntegrationSyncLoggerService } from '../services/integration-sync-logger.service';
 import { RampApiService } from '../services/ramp-api.service';
+import { filterUsersByOrgUnits } from './sync-ou-filter';
 
 interface GoogleWorkspaceUser {
   id: string;
@@ -284,6 +285,19 @@ export class SyncController {
       string,
       unknown
     >;
+
+    // Filter by organizational unit if configured
+    const targetOrgUnits = Array.isArray(syncVariables.target_org_units)
+      ? (syncVariables.target_org_units as string[])
+      : undefined;
+    const ouFilteredUsers = filterUsersByOrgUnits(users, targetOrgUnits);
+
+    if (targetOrgUnits && targetOrgUnits.length > 0) {
+      this.logger.log(
+        `Google Workspace OU filter kept ${ouFilteredUsers.length}/${users.length} users (OUs: ${targetOrgUnits.join(', ')})`,
+      );
+    }
+
     const rawSyncFilterMode = syncVariables.sync_user_filter_mode;
     const syncFilterMode: GoogleWorkspaceSyncFilterMode =
       typeof rawSyncFilterMode === 'string' &&
@@ -307,7 +321,7 @@ export class SyncController {
       effectiveSyncFilterMode = 'all';
     }
 
-    const filteredUsers = users.filter((user) => {
+    const filteredUsers = ouFilteredUsers.filter((user) => {
       const email = user.primaryEmail.toLowerCase();
 
       if (effectiveSyncFilterMode === 'exclude' && excludedTerms.length > 0) {
@@ -322,7 +336,7 @@ export class SyncController {
     });
 
     this.logger.log(
-      `Google Workspace sync filter mode "${effectiveSyncFilterMode}" kept ${filteredUsers.length}/${users.length} users`,
+      `Google Workspace sync filter mode "${effectiveSyncFilterMode}" kept ${filteredUsers.length}/${ouFilteredUsers.length} users`,
     );
 
     // Active users to import/reactivate are based on the selected filter mode
@@ -336,10 +350,10 @@ export class SyncController {
       activeUsers.map((u) => u.primaryEmail.toLowerCase()),
     );
     const allSuspendedEmails = new Set(
-      users.filter((u) => u.suspended).map((u) => u.primaryEmail.toLowerCase()),
+      ouFilteredUsers.filter((u) => u.suspended).map((u) => u.primaryEmail.toLowerCase()),
     );
     const allActiveEmails = new Set(
-      users
+      ouFilteredUsers
         .filter((u) => !u.suspended)
         .map((u) => u.primaryEmail.toLowerCase()),
     );
@@ -467,7 +481,7 @@ export class SyncController {
 
     const deactivationGwDomains =
       effectiveSyncFilterMode === 'include'
-        ? new Set(users.map((u) => u.primaryEmail.split('@')[1]?.toLowerCase()))
+        ? new Set(ouFilteredUsers.map((u) => u.primaryEmail.split('@')[1]?.toLowerCase()))
         : new Set(
             filteredUsers.map((u) =>
               u.primaryEmail.split('@')[1]?.toLowerCase(),
diff --git a/packages/integration-platform/src/manifests/google-workspace/index.ts b/packages/integration-platform/src/manifests/google-workspace/index.ts
index 770adcfa7..359f66a99 100644
--- a/packages/integration-platform/src/manifests/google-workspace/index.ts
+++ b/packages/integration-platform/src/manifests/google-workspace/index.ts
@@ -4,6 +4,7 @@ import {
   syncExcludedEmailsVariable,
   syncIncludedEmailsVariable,
   syncUserFilterModeVariable,
+  targetOrgUnitsVariable,
 } from './variables';
 
 export const googleWorkspaceManifest: IntegrationManifest = {
@@ -52,7 +53,7 @@ Note: The user authorizing must be a Google Workspace admin.`,
 
   capabilities: ['checks', 'sync'],
 
-  variables: [syncUserFilterModeVariable, syncExcludedEmailsVariable, syncIncludedEmailsVariable],
+  variables: [targetOrgUnitsVariable, syncUserFilterModeVariable, syncExcludedEmailsVariable, syncIncludedEmailsVariable],
 
   checks: [twoFactorAuthCheck, employeeAccessCheck],
 };
diff --git a/packages/integration-platform/src/manifests/google-workspace/variables.ts b/packages/integration-platform/src/manifests/google-workspace/variables.ts
index 24f539f69..ba453e318 100644
--- a/packages/integration-platform/src/manifests/google-workspace/variables.ts
+++ b/packages/integration-platform/src/manifests/google-workspace/variables.ts
@@ -2,13 +2,13 @@ import type { CheckVariable } from '../../types';
 import type { GoogleWorkspaceOrgUnitsResponse } from './types';
 
 /**
- * Target organizational units to check
- * Allows filtering checks to specific OUs instead of entire domain
+ * Target organizational units for checks and employee sync.
+ * Allows filtering to specific OUs instead of entire domain.
  */
 export const targetOrgUnitsVariable: CheckVariable = {
   id: 'target_org_units',
   label: 'Organizational Units',
-  helpText: 'Select which organizational units to include in checks (leave empty for all)',
+  helpText: 'Select which organizational units to include in checks and employee sync (leave empty for all)',
   type: 'multi-select',
   required: false,
   fetchOptions: async (ctx) => {