| Country: | DEU |
| Type: | A |
| Route: | 391 |
| Map: | BS A391.png |
| Length Km: | 10 |
| States: | Lower Saxony |
| Previous Type: | A |
| Previous Route: | 369 |
| Next Type: | A |
| Next Route: | 392 |
is an autobahn in Braunschweig, also known as the Braunschweiger Westtangente. Its purpose is to connect the A 2 with the A 39, passing the city of Braunschweig on the western side.
|}