diff --git a/homeassistant/helpers/system_info.py b/homeassistant/helpers/system_info.py
index 766fa90af96..7e65ab858ad 100644
--- a/homeassistant/helpers/system_info.py
+++ b/homeassistant/helpers/system_info.py
@@ -23,13 +23,17 @@ async def async_get_system_info(hass: HomeAssistant) -> dict[str, Any]:
         "virtualenv": is_virtual_env(),
         "python_version": platform.python_version(),
         "docker": False,
-        "user": getuser(),
         "arch": platform.machine(),
         "timezone": str(hass.config.time_zone),
         "os_name": platform.system(),
         "os_version": platform.release(),
     }
 
+    try:
+        info_object["user"] = getuser()
+    except KeyError:
+        info_object["user"] = None
+
     if platform.system() == "Windows":
         info_object["os_version"] = platform.win32_ver()[0]
     elif platform.system() == "Darwin":
diff --git a/tests/helpers/test_system_info.py b/tests/helpers/test_system_info.py
index fd9d488596f..f4cb70f421a 100644
--- a/tests/helpers/test_system_info.py
+++ b/tests/helpers/test_system_info.py
@@ -27,3 +27,10 @@ async def test_container_installationtype(hass):
     ), patch("homeassistant.helpers.system_info.getuser", return_value="user"):
         info = await hass.helpers.system_info.async_get_system_info()
         assert info["installation_type"] == "Unknown"
+
+
+async def test_getuser_keyerror(hass):
+    """Test getuser keyerror."""
+    with patch("homeassistant.helpers.system_info.getuser", side_effect=KeyError):
+        info = await hass.helpers.system_info.async_get_system_info()
+        assert info["user"] is None