diff --git a/tests/e2e/e2e_http.py b/tests/e2e/e2e_http.py
index 692f951d08e..ce801ef81fb 100644
--- a/tests/e2e/e2e_http.py
+++ b/tests/e2e/e2e_http.py
@@ -264,6 +264,26 @@ def delete[R: BaseModel](
     return _classify(resp, response_type)
 
 
+def patch[R: BaseModel](
+    url: URL,
+    *,
+    headers: BaseModel,
+    json: BaseModel,
+    response_type: type[R],
+    timeout: float = 30.0,
+) -> Result[R]:
+    try:
+        resp = requests.patch(
+            str(url),
+            headers=_headers(headers),
+            json=json.model_dump(by_alias=True, exclude_none=True),
+            timeout=timeout,
+        )
+    except requests.RequestException as exc:
+        return NetworkError(message=str(exc))
+    return _classify(resp, response_type)
+
+
 def probe(
     url: URL, *, headers: BaseModel, params: BaseModel, timeout: float = 30.0
 ) -> ProbeResult:
diff --git a/tests/e2e/management/management_client.py b/tests/e2e/management/management_client.py
index 0d68098d2d2..b2c9eb6a29b 100644
--- a/tests/e2e/management/management_client.py
+++ b/tests/e2e/management/management_client.py
@@ -28,6 +28,7 @@ from models import (
     OrgInfoResponse,
     OrgNewBody,
     OrgNewResponse,
+    OrgUpdateBody,
     TagDeleteBody,
     TagListEntry,
     TagListResponse,
@@ -327,6 +328,16 @@ class ManagementClient:
             )
         ).organization_id
 
+    def update_org(self, body: OrgUpdateBody) -> None:
+        _ = unwrap(
+            self.proxy.transport.patch(
+                "/organization/update",
+                headers=self.proxy.transport.master,
+                json=body,
+                response_type=NoBody,
+            )
+        )
+
     def delete_org(self, organization_id: str) -> None:
         _ = self.proxy.transport.delete(
             "/organization/delete",
diff --git a/tests/e2e/management/test_management_e2e.py b/tests/e2e/management/test_management_e2e.py
index 4e9270bb9e5..b0a12220341 100644
--- a/tests/e2e/management/test_management_e2e.py
+++ b/tests/e2e/management/test_management_e2e.py
@@ -23,7 +23,7 @@ from management_client import (
     ROUTE_NOT_ALLOWED_MARKER,
     ManagementClient,
 )
-from models import KeyGenerateBody, OrgNewBody, TagListEntry, TagNewBody, TeamNewBody, TeamUpdateBody, UserNewBody, UserUpdateBody, LiteLLMParamsBody, ModelInfoEntry
+from models import KeyGenerateBody, OrgInfoResponse, OrgNewBody, OrgUpdateBody, TagListEntry, TagNewBody, TeamNewBody, TeamUpdateBody, UserNewBody, UserUpdateBody, LiteLLMParamsBody, ModelInfoEntry
 
 pytestmark = pytest.mark.e2e
 
@@ -342,6 +342,24 @@ class TestOrganizationRoutes:
             f"/organization/info reports models {info.models}, configured ['gemini-2.5-flash']"
         )
 
+    @pytest.mark.covers("mgmt.organization.update.persists")
+    def test_update_alias_persists_to_organization_info(
+        self, client: ManagementClient, resources: ResourceManager
+    ) -> None:
+        org_id = client.create_org(OrgNewBody(organization_alias=f"e2e-mgmt-org-{unique_marker()}"))
+        resources.defer(lambda: client.delete_org(org_id))
+
+        new_alias = f"e2e-mgmt-org-{unique_marker()}"
+        client.update_org(OrgUpdateBody(organization_id=org_id, organization_alias=new_alias))
+
+        def attempt() -> OrgInfoResponse | None:
+            info = client.org_info(org_id)
+            return info if info.organization_alias == new_alias else None
+
+        _ = _poll(
+            client, attempt, f"/organization/info never reflected updated alias {new_alias!r} before the deadline"
+        )
+
     @pytest.mark.covers("mgmt.organization.delete.persists")
     def test_delete_removes_from_organization_info(
         self, client: ManagementClient, resources: ResourceManager
diff --git a/tests/e2e/models.py b/tests/e2e/models.py
index db140a918fa..9e773120846 100644
--- a/tests/e2e/models.py
+++ b/tests/e2e/models.py
@@ -727,6 +727,11 @@ class OrgNewResponse(BaseModel):
     organization_id: str
 
 
+class OrgUpdateBody(BaseModel):
+    organization_id: str
+    organization_alias: str
+
+
 class OrgInfoParams(BaseModel):
     organization_id: str
 
diff --git a/tests/e2e/transport.py b/tests/e2e/transport.py
index 10e090f07a9..64fe6406ff7 100644
--- a/tests/e2e/transport.py
+++ b/tests/e2e/transport.py
@@ -55,6 +55,10 @@ class Transport(Protocol):
         self, path: str, *, headers: BaseModel, json: BaseModel, response_type: type[R]
     ) -> Result[R]: ...
 
+    def patch[R: BaseModel](
+        self, path: str, *, headers: BaseModel, json: BaseModel, response_type: type[R]
+    ) -> Result[R]: ...
+
     def probe(self, path: str, *, params: BaseModel) -> ProbeResult: ...
 
     def upload[R: BaseModel](
@@ -131,6 +135,17 @@ class HttpTransport:
             timeout=self.request_timeout,
         )
 
+    def patch[R: BaseModel](
+        self, path: str, *, headers: BaseModel, json: BaseModel, response_type: type[R]
+    ) -> Result[R]:
+        return e2e_http.patch(
+            self._url(path),
+            headers=headers,
+            json=json,
+            response_type=response_type,
+            timeout=self.request_timeout,
+        )
+
     def stream(
         self, path: str, *, headers: BaseModel, json: BaseModel
     ) -> StreamingResponse:
@@ -271,6 +286,13 @@ class SplitTransport:
             path, headers=headers, json=json, response_type=response_type
         )
 
+    def patch[R: BaseModel](
+        self, path: str, *, headers: BaseModel, json: BaseModel, response_type: type[R]
+    ) -> Result[R]:
+        return self._route(path).patch(
+            path, headers=headers, json=json, response_type=response_type
+        )
+
     def stream(
         self, path: str, *, headers: BaseModel, json: BaseModel
     ) -> StreamingResponse: