| Country: | NAM |
| Type: | C |
| Route: | 11 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | at Karasburg |
| Junction: | at Aroab |
| Terminus B: | at Koës |
| Previous Type: | C |
| Previous Route: | 10 |
| Next Type: | C |
| Next Route: | 12 |
C11 is an untarred highway in southern Namibia. It starts along the C17 road, 129km (80miles) from Keetmanshoop and finishes 319km (198miles) later when it reaches the B3 road, 2km (01miles) from Karasburg.