diff --git a/app/alembic/versions/c5a9b3f2e8d7_add_contact_object_class.py b/app/alembic/versions/c5a9b3f2e8d7_add_contact_object_class.py
new file mode 100644
index 000000000..33bd3a433
--- /dev/null
+++ b/app/alembic/versions/c5a9b3f2e8d7_add_contact_object_class.py
@@ -0,0 +1,82 @@
+"""Add Contact objectClass and mailRecipient to LDAP schema.
+
+Revision ID: c5a9b3f2e8d7
+Revises: 8164b4a9e1f1, f1abf7ef2443
+Create Date: 2026-01-19 12:00:00.000000
+
+"""
+
+from alembic import op
+from dishka import AsyncContainer, Scope
+from sqlalchemy import delete
+from sqlalchemy.ext.asyncio import AsyncConnection, AsyncSession
+
+from entities import EntityType
+from enums import EntityTypeNames
+from ldap_protocol.ldap_schema.dto import EntityTypeDTO
+from ldap_protocol.ldap_schema.entity_type_use_case import EntityTypeUseCase
+from ldap_protocol.utils.queries import get_base_directories
+from repo.pg.tables import queryable_attr as qa
+
+# revision identifiers, used by Alembic.
+revision = "c5a9b3f2e8d7"
+down_revision = "71e642808369"
+branch_labels: None | str = None
+depends_on: None | str = None
+
+
+def upgrade(container: AsyncContainer) -> None:
+    """Add Contact objectClass and mailRecipient to LDAP schema."""
+
+    async def _create_entity_type(
+        connection: AsyncConnection,  # noqa: ARG001
+    ) -> None:
+        """Create Contact Entity Type."""
+        async with container(scope=Scope.REQUEST) as cnt:
+            session = await cnt.get(AsyncSession)
+            entity_type_use_case = await cnt.get(EntityTypeUseCase)
+
+        if not await get_base_directories(session):
+            return
+
+        await entity_type_use_case.create(
+            EntityTypeDTO(
+                name=EntityTypeNames.CONTACT,
+                object_class_names=[
+                    "top",
+                    "person",
+                    "organizationalPerson",
+                    "contact",
+                    "mailRecipient",
+                ],
+                is_system=True,
+            ),
+        )
+
+        await session.commit()
+
+    op.run_async(_create_entity_type)
+
+
+def downgrade(container: AsyncContainer) -> None:
+    """Remove Contact objectClass and mailRecipient from LDAP schema."""
+
+    async def _delete_entity_type(
+        connection: AsyncConnection,  # noqa: ARG001
+    ) -> None:
+        """Delete Contact Entity Type."""
+        async with container(scope=Scope.REQUEST) as cnt:
+            session = await cnt.get(AsyncSession)
+
+        if not await get_base_directories(session):
+            return
+
+        await session.execute(
+            delete(EntityType).where(
+                qa(EntityType.name) == EntityTypeNames.CONTACT,
+            ),
+        )
+
+        await session.commit()
+
+    op.run_async(_delete_entity_type)
diff --git a/app/constants.py b/app/constants.py
index fe4cdf6da..f54d78a35 100644
--- a/app/constants.py
+++ b/app/constants.py
@@ -262,6 +262,16 @@ class EntityTypeData(TypedDict):
             "inetOrgPerson",
         ],
     ),
+    EntityTypeData(
+        name=EntityTypeNames.CONTACT,
+        object_class_names=[
+            "top",
+            "person",
+            "organizationalPerson",
+            "contact",
+            "mailRecipient",
+        ],
+    ),
     EntityTypeData(
         name=EntityTypeNames.KRB_CONTAINER,
         object_class_names=["krbContainer"],
diff --git a/app/enums.py b/app/enums.py
index f0bec8c21..f482b928e 100644
--- a/app/enums.py
+++ b/app/enums.py
@@ -58,6 +58,7 @@ class EntityTypeNames(StrEnum):
     ORGANIZATIONAL_UNIT = "Organizational Unit"
     GROUP = "Group"
     USER = "User"
+    CONTACT = "Contact"
     KRB_CONTAINER = "KRB Container"
     KRB_PRINCIPAL = "KRB Principal"
     KRB_REALM_CONTAINER = "KRB Realm Container"
diff --git a/interface b/interface
index 97bbc08dd..f31962020 160000
--- a/interface
+++ b/interface
@@ -1 +1 @@
-Subproject commit 97bbc08dda7584f579f756d8b09abe60db67b47b
+Subproject commit f31962020a6689e6a4c61fb3349db5b5c7895f92
diff --git a/tests/test_api/test_ldap_schema/test_object_class_router.py b/tests/test_api/test_ldap_schema/test_object_class_router.py
index ce3eacb2c..6e04cecdc 100644
--- a/tests/test_api/test_ldap_schema/test_object_class_router.py
+++ b/tests/test_api/test_ldap_schema/test_object_class_router.py
@@ -16,7 +16,7 @@
 
 
 @pytest.mark.asyncio
-async def test_get_one_extended_object_class(
+async def test_get_extended_object_classes(
     http_client: AsyncClient,
 ) -> None:
     """Test getting a single extended object class."""
@@ -26,7 +26,10 @@ async def test_get_one_extended_object_class(
     assert response.status_code == status.HTTP_200_OK
     data = response.json()
     assert isinstance(data, dict)
-    assert data.get("entity_type_names") == [EntityTypeNames.USER]
+    assert set(data.get("entity_type_names")) == {  # type: ignore
+        EntityTypeNames.CONTACT,
+        EntityTypeNames.USER,
+    }
 
 
 @pytest.mark.parametrize(