| Country: | NAM |
| Type: | C |
| Route: | 23 |
| Direction A: | South-east |
| Direction B: | North-west |
| Terminus A: | near Leonardville |
| Junction: | near Blumfelde at Dordabis |
| Terminus B: | near Hosea Kutako International Airport |
| Previous Type: | C |
| Previous Route: | 22 |
| Next Type: | C |
| Next Route: | 24 |
C23 is a secondary route in Namibia that runs from Leonardville to the B6 near Hosea Kutako International Airport via Dordabis.