diff --git a/src/prefect/cli/dashboard.py b/src/prefect/cli/dashboard.py
index 9ead1988490c..a7b2caea7145 100644
--- a/src/prefect/cli/dashboard.py
+++ b/src/prefect/cli/dashboard.py
@@ -4,7 +4,7 @@
 from prefect.cli._utilities import exit_with_success
 from prefect.cli.cloud import get_current_workspace
 from prefect.cli.root import app
-from prefect.client.cloud import get_cloud_client
+from prefect.client.cloud import CloudUnauthorizedError, get_cloud_client
 from prefect.settings import PREFECT_UI_URL
 from prefect.utilities.asyncutils import run_sync_in_worker_thread
 
@@ -29,7 +29,10 @@ async def open():
     await run_sync_in_worker_thread(webbrowser.open_new_tab, ui_url)
 
     async with get_cloud_client() as client:
-        current_workspace = get_current_workspace(await client.read_workspaces())
+        try:
+            current_workspace = get_current_workspace(await client.read_workspaces())
+        except CloudUnauthorizedError:
+            current_workspace = None
 
     destination = (
         f"{current_workspace.account_handle}/{current_workspace.workspace_handle}"
diff --git a/tests/cli/test_dashboard.py b/tests/cli/test_dashboard.py
index 77f3020e4f41..a3f479b54c8d 100644
--- a/tests/cli/test_dashboard.py
+++ b/tests/cli/test_dashboard.py
@@ -102,3 +102,36 @@ def test_open_current_workspace_in_browser_failure_no_workspace_set(
 
     with use_profile("logged-in-profile"):
         invoke_and_assert(["dashboard", "open"], expected_code=0)
+
+
+@pytest.mark.usefixtures("mock_webbrowser")
+@pytest.mark.parametrize("api_url", ["http://localhost:4200", "https://api.prefect.io"])
+def test_open_current_workspace_in_browser_failure_unauthorized(respx_mock, api_url):
+    save_profiles(
+        ProfilesCollection(
+            [
+                Profile(
+                    name="logged-in-profile",
+                    settings={
+                        PREFECT_API_URL: api_url,
+                        PREFECT_API_KEY: "invalid_key",
+                    },
+                )
+            ],
+            active="logged-in-profile",
+        )
+    )
+
+    respx_mock.get(PREFECT_CLOUD_API_URL.value() + "/me/workspaces").mock(
+        return_value=httpx.Response(
+            status.HTTP_401_UNAUTHORIZED,
+            json={"detail": "Unauthorized"},
+        )
+    )
+
+    with use_profile("logged-in-profile"):
+        invoke_and_assert(
+            ["dashboard", "open"],
+            expected_code=0,
+            expected_output_contains=f"Opened {api_url!r} in browser.",
+        )