diff --git a/api/src/backend/api/models.py b/api/src/backend/api/models.py
index 084cb41c58..8832c902f1 100644
--- a/api/src/backend/api/models.py
+++ b/api/src/backend/api/models.py
@@ -1527,6 +1527,12 @@ class SAMLConfiguration(RowLevelSecurityProtectedModel):
             email_domain=self.email_domain, defaults={"tenant": self.tenant}
         )
 
+    def delete(self, *args, **kwargs):
+        super().delete(*args, **kwargs)
+
+        SocialApp.objects.filter(provider="saml", client_id=self.email_domain).delete()
+        SAMLDomainIndex.objects.filter(email_domain=self.email_domain).delete()
+
     def _parse_metadata(self):
         """
         Parse the raw IdP metadata XML and extract:
diff --git a/api/src/backend/api/tests/test_models.py b/api/src/backend/api/tests/test_models.py
index d834143ed1..82ad2e880f 100644
--- a/api/src/backend/api/tests/test_models.py
+++ b/api/src/backend/api/tests/test_models.py
@@ -3,7 +3,7 @@ from allauth.socialaccount.models import SocialApp
 from django.core.exceptions import ValidationError
 
 from api.db_router import MainRouter
-from api.models import Resource, ResourceTag, SAMLConfiguration, Tenant
+from api.models import Resource, ResourceTag, SAMLConfiguration, SAMLDomainIndex, Tenant
 
 
 @pytest.mark.django_db
@@ -269,3 +269,40 @@ class TestSAMLConfigurationModel:
         errors = exc_info.value.message_dict
         assert "metadata_xml" in errors
         assert "X509Certificate" in errors["metadata_xml"][0]
+
+    def test_deletes_saml_configuration_and_related_objects(self):
+        tenant = Tenant.objects.using(MainRouter.admin_db).create(
+            name="Tenant for Deletion"
+        )
+        email_domain = "deleteme.com"
+
+        # Create the configuration
+        config = SAMLConfiguration.objects.using(MainRouter.admin_db).create(
+            email_domain=email_domain,
+            metadata_xml=TestSAMLConfigurationModel.VALID_METADATA,
+            tenant=tenant,
+        )
+
+        # Verify that the SocialApp and SAMLDomainIndex exist
+        assert SocialApp.objects.filter(client_id=email_domain).exists()
+        assert (
+            SAMLDomainIndex.objects.using(MainRouter.admin_db)
+            .filter(email_domain=email_domain)
+            .exists()
+        )
+
+        # Delete the configuration
+        config.delete()
+
+        # Verify that the configuration and its related objects are deleted
+        assert (
+            not SAMLConfiguration.objects.using(MainRouter.admin_db)
+            .filter(pk=config.pk)
+            .exists()
+        )
+        assert not SocialApp.objects.filter(client_id=email_domain).exists()
+        assert (
+            not SAMLDomainIndex.objects.using(MainRouter.admin_db)
+            .filter(email_domain=email_domain)
+            .exists()
+        )