| Country: | NAM |
| Type: | B |
| Route: | 2 |
| Maint: | Roads Authority Namibia |
| Map: | Map NAM B2.svg |
| Map Notes: | Map of the B2. |
| Length Km: | 320 |
| Direction A: | East |
| Direction B: | West |
| Terminus A: | near Okahandja |
| Terminus B: | in Walvis Bay |
| Towns: | Okahandja, Karibib, Usakos, Arandis, Swakopmund, Walvis Bay |
| Previous Type: | B |
| Previous Route: | 1 |
| Next Type: | B |
| Next Route: | 3 |
B2 is a major road in Namibia. The highway runs east–west between the major sea port of Walvis Bay and the nation's capital Windhoek.
The B2's entire route forms the first section of both the Trans-Kalahari Corridor and the Walvis Bay-Ndola-Lubumbashi Development Road.
B2 begins in Walvis Bay at a roundabout intersection with C14 and heads north along the coast of the South Atlantic Ocean for about 35 kilometers to Swakopmund. The route then heads northeast & east through inland Namibia for 291 kilometers where it ends at an intersection with B1 near Okahandja. The route passes through the Namib-Naukluft National Park and the Namib Desert. Major towns along the route are Arandis, Usakos, and Karibib.