diff --git a/components/renku_data_services/renku_apps/api.spec.yaml b/components/renku_data_services/renku_apps/api.spec.yaml
index 4e95330e7..19d38d7b1 100644
--- a/components/renku_data_services/renku_apps/api.spec.yaml
+++ b/components/renku_data_services/renku_apps/api.spec.yaml
@@ -48,6 +48,22 @@ paths:
           $ref: "#/components/responses/Error"
       tags:
         - apps
+    delete:
+      summary: Delete an app
+      parameters:
+        - in: path
+          name: app_name
+          required: true
+          schema:
+            $ref: "#/components/schemas/AppName"
+          description: The name of the app to delete
+      responses:
+        "204":
+          description: The app was successfully deleted or did not exist
+        default:
+          $ref: "#/components/responses/Error"
+      tags:
+        - apps
 components:
   schemas:
     Ulid:
diff --git a/components/renku_data_services/renku_apps/blueprints.py b/components/renku_data_services/renku_apps/blueprints.py
index 75a4bdf07..62d09688c 100644
--- a/components/renku_data_services/renku_apps/blueprints.py
+++ b/components/renku_data_services/renku_apps/blueprints.py
@@ -2,7 +2,7 @@
 
 from dataclasses import dataclass
 
-from sanic import Request
+from sanic import HTTPResponse, Request
 from sanic.response import JSONResponse, json
 from sanic_ext import validate
 from ulid import ULID
@@ -42,3 +42,14 @@ async def _get_one(_: Request, user: base_models.APIUser, app_name: str) -> JSON
             return json(app.as_apispec().model_dump(exclude_none=True, mode="json"))
 
         return "/apps/<app_name>", ["GET"], _get_one
+
+    def delete_one(self) -> BlueprintFactoryResponse:
+        """Delete an app by name."""
+
+        @authenticate(self.authenticator)
+        @only_authenticated
+        async def _delete_one(_: Request, user: base_models.APIUser, app_name: str) -> HTTPResponse:
+            await self.apps_repo.delete_app(user=user, app_name=app_name)
+            return HTTPResponse(status=204)
+
+        return "/apps/<app_name>", ["DELETE"], _delete_one
diff --git a/components/renku_data_services/renku_apps/k8s_client.py b/components/renku_data_services/renku_apps/k8s_client.py
index 737aae1fd..a3a1ff8c7 100644
--- a/components/renku_data_services/renku_apps/k8s_client.py
+++ b/components/renku_data_services/renku_apps/k8s_client.py
@@ -84,8 +84,16 @@ async def get_app_deployment_for_project(
         return await self.get_app_deployment(_generate_app_name(project, session_launcher))
 
     async def delete_app_deployment(self, app_name: str) -> None:
-        """Delete the deployment for the given app name. NOT IMPLEMENTED."""
-        raise NotImplementedError("Deleting app deployment is not implemented yet")
+        """Delete the deployment for the given app name."""
+        cluster = await self.__client.cluster_by_id(self.__cluster_id)
+        meta = K8sObjectMeta(
+            name=app_name,
+            namespace=cluster.namespace,
+            cluster=cluster.id,
+            gvk=KNATIVE_SERVICE_GVK,
+            user_id=DUMMY_RENKU_APP_USER_ID,
+        )
+        await self.__client.delete(meta)
 
     async def list_app_deployments(self) -> AsyncGenerator[AppRuntimeState, None]:
         """List all app deployments. NOT IMPLEMENTED."""
diff --git a/components/renku_data_services/renku_apps/repository.py b/components/renku_data_services/renku_apps/repository.py
index 4f120ec58..a1ed32b63 100644
--- a/components/renku_data_services/renku_apps/repository.py
+++ b/components/renku_data_services/renku_apps/repository.py
@@ -4,6 +4,7 @@
 
 import renku_data_services.base_models as base_models
 from renku_data_services import errors
+from renku_data_services.app_config import logging
 from renku_data_services.authz.authz import Authz, ResourceType
 from renku_data_services.authz.models import Scope
 from renku_data_services.crc.db import ResourcePoolRepository
@@ -14,6 +15,8 @@
 from renku_data_services.renku_apps.models import App
 from renku_data_services.session.db import SessionRepository
 
+logger = logging.getLogger(__name__)
+
 
 class RenkuAppsRepository:
     """Use-case-focused API for Renku apps, dispatching to k8s rather than SQL."""
@@ -65,3 +68,25 @@ async def get_app(self, user: base_models.APIUser, app_name: str) -> App:
 
         launcher = await self.session_repo.get_launcher(user, runtime_state.launcher_id)
         return build_app(launcher, runtime_state)
+
+    async def delete_app(self, user: base_models.APIUser, app_name: str) -> None:
+        """Delete an app by its name."""
+        if not user.is_authenticated or user.id is None:
+            raise errors.UnauthorizedError(message="You do not have the required permissions for this operation.")
+
+        runtime_state = await self.k8s_client.get_app_deployment(app_name)
+        if runtime_state is None:
+            logger.info(f"App with name {app_name} was not found.")
+            return None
+
+        launcher = await self.session_repo.get_launcher(user, runtime_state.launcher_id)
+
+        authorized = await self.authz.has_permission(user, ResourceType.project, launcher.project_id, Scope.WRITE)
+        if not authorized:
+            raise errors.MissingResourceError(
+                message=f"App with name '{app_name}' does not exist or you do not have authorization to modify it."
+            )
+
+        await self.k8s_client.delete_app_deployment(app_name)
+        logger.info(f"App with name {app_name} has been deleted.")
+        return None