diff --git a/homeassistant/components/backup/websocket.py b/homeassistant/components/backup/websocket.py
index e2164a2dbca..984e7a12b0d 100644
--- a/homeassistant/components/backup/websocket.py
+++ b/homeassistant/components/backup/websocket.py
@@ -22,7 +22,6 @@ def async_register_websocket_handlers(hass: HomeAssistant, with_hassio: bool) ->
     if with_hassio:
         websocket_api.async_register_command(hass, handle_backup_end)
         websocket_api.async_register_command(hass, handle_backup_start)
-        websocket_api.async_register_command(hass, handle_backup_upload)
         return
 
     websocket_api.async_register_command(hass, handle_details)
@@ -190,34 +189,6 @@ async def handle_backup_end(
     connection.send_result(msg["id"])
 
 
-@websocket_api.ws_require_user(only_supervisor=True)
-@websocket_api.websocket_command(
-    {
-        vol.Required("type"): "backup/upload",
-        vol.Required("data"): {
-            vol.Required("slug"): str,
-        },
-    }
-)
-@websocket_api.async_response
-async def handle_backup_upload(
-    hass: HomeAssistant,
-    connection: websocket_api.ActiveConnection,
-    msg: dict[str, Any],
-) -> None:
-    """Backup upload."""
-    LOGGER.debug("Backup upload notification")
-    data = msg["data"]
-
-    try:
-        await hass.data[DATA_MANAGER].async_upload_backup(slug=data["slug"])
-    except Exception as err:  # noqa: BLE001
-        connection.send_error(msg["id"], "backup_upload_failed", str(err))
-        return
-
-    connection.send_result(msg["id"])
-
-
 @websocket_api.require_admin
 @websocket_api.websocket_command({vol.Required("type"): "backup/agents/info"})
 @websocket_api.async_response
diff --git a/tests/components/backup/snapshots/test_websocket.ambr b/tests/components/backup/snapshots/test_websocket.ambr
index 2adaafc5060..9fefef2e018 100644
--- a/tests/components/backup/snapshots/test_websocket.ambr
+++ b/tests/components/backup/snapshots/test_websocket.ambr
@@ -251,80 +251,6 @@
     'type': 'result',
   })
 # ---
-# name: test_backup_upload[with_hassio-hass_access_token]
-  dict({
-    'error': dict({
-      'code': 'only_supervisor',
-      'message': 'Only allowed as Supervisor',
-    }),
-    'id': 1,
-    'success': False,
-    'type': 'result',
-  })
-# ---
-# name: test_backup_upload[with_hassio-hass_supervisor_access_token]
-  dict({
-    'id': 1,
-    'result': None,
-    'success': True,
-    'type': 'result',
-  })
-# ---
-# name: test_backup_upload[without_hassio-hass_access_token]
-  dict({
-    'error': dict({
-      'code': 'unknown_command',
-      'message': 'Unknown command.',
-    }),
-    'id': 1,
-    'success': False,
-    'type': 'result',
-  })
-# ---
-# name: test_backup_upload[without_hassio-hass_supervisor_access_token]
-  dict({
-    'error': dict({
-      'code': 'unknown_command',
-      'message': 'Unknown command.',
-    }),
-    'id': 1,
-    'success': False,
-    'type': 'result',
-  })
-# ---
-# name: test_backup_upload_exception[exception0]
-  dict({
-    'error': dict({
-      'code': 'backup_upload_failed',
-      'message': '',
-    }),
-    'id': 1,
-    'success': False,
-    'type': 'result',
-  })
-# ---
-# name: test_backup_upload_exception[exception1]
-  dict({
-    'error': dict({
-      'code': 'backup_upload_failed',
-      'message': 'Boom',
-    }),
-    'id': 1,
-    'success': False,
-    'type': 'result',
-  })
-# ---
-# name: test_backup_upload_exception[exception2]
-  dict({
-    'error': dict({
-      'code': 'backup_upload_failed',
-      'message': 'Boom',
-    }),
-    'id': 1,
-    'success': False,
-    'type': 'result',
-  })
-# ---
 # name: test_details[with_hassio-with_backup_content]
   dict({
     'error': dict({
diff --git a/tests/components/backup/test_websocket.py b/tests/components/backup/test_websocket.py
index bc8b126aa27..958191a7eb6 100644
--- a/tests/components/backup/test_websocket.py
+++ b/tests/components/backup/test_websocket.py
@@ -311,46 +311,6 @@ async def test_backup_start(
         assert await client.receive_json() == snapshot
 
 
-@pytest.mark.parametrize(
-    "access_token_fixture_name",
-    ["hass_access_token", "hass_supervisor_access_token"],
-)
-@pytest.mark.parametrize(
-    ("with_hassio"),
-    [
-        pytest.param(True, id="with_hassio"),
-        pytest.param(False, id="without_hassio"),
-    ],
-)
-async def test_backup_upload(
-    hass: HomeAssistant,
-    hass_ws_client: WebSocketGenerator,
-    snapshot: SnapshotAssertion,
-    sync_access_token_proxy: str,
-    *,
-    access_token_fixture_name: str,
-    with_hassio: bool,
-) -> None:
-    """Test backup upload from a WS command."""
-    await setup_backup_integration(hass, with_hassio=with_hassio)
-
-    client = await hass_ws_client(hass, sync_access_token_proxy)
-    await hass.async_block_till_done()
-
-    with patch(
-        "homeassistant.components.backup.manager.BackupManager.async_upload_backup",
-    ):
-        await client.send_json_auto_id(
-            {
-                "type": "backup/upload",
-                "data": {
-                    "slug": "abc123",
-                },
-            }
-        )
-        assert await client.receive_json() == snapshot
-
-
 @pytest.mark.parametrize(
     "exception",
     [
@@ -380,42 +340,6 @@ async def test_backup_end_exception(
         assert await client.receive_json() == snapshot
 
 
-@pytest.mark.parametrize(
-    "exception",
-    [
-        TimeoutError(),
-        HomeAssistantError("Boom"),
-        Exception("Boom"),
-    ],
-)
-async def test_backup_upload_exception(
-    hass: HomeAssistant,
-    hass_ws_client: WebSocketGenerator,
-    snapshot: SnapshotAssertion,
-    hass_supervisor_access_token: str,
-    exception: Exception,
-) -> None:
-    """Test exception handling while running backup upload from a WS command."""
-    await setup_backup_integration(hass, with_hassio=True)
-
-    client = await hass_ws_client(hass, hass_supervisor_access_token)
-    await hass.async_block_till_done()
-
-    with patch(
-        "homeassistant.components.backup.manager.BackupManager.async_upload_backup",
-        side_effect=exception,
-    ):
-        await client.send_json_auto_id(
-            {
-                "type": "backup/upload",
-                "data": {
-                    "slug": "abc123",
-                },
-            }
-        )
-        assert await client.receive_json() == snapshot
-
-
 @pytest.mark.parametrize(
     "exception",
     [
diff --git a/tests/components/kitchen_sink/test_backup.py b/tests/components/kitchen_sink/test_backup.py
index 1866a1e2e19..f60fdbba0ca 100644
--- a/tests/components/kitchen_sink/test_backup.py
+++ b/tests/components/kitchen_sink/test_backup.py
@@ -104,6 +104,7 @@ async def test_agents_download(
     assert f"Downloading backup {backup_id} to {path}" in caplog.text
 
 
+@pytest.mark.xfail(reason="Disabled until /api/backup/upload accepts a list of agents")
 async def test_agents_upload(
     hass: HomeAssistant,
     hass_ws_client: WebSocketGenerator,