| Country: | ZAF |
| Type: | R |
| Route: | 309 |
| Length Km: | 70 |
| Length Round: | 0 |
| Direction A: | North |
| Terminus A: | at Postmasburg |
| Direction B: | South |
| Terminus B: | between Groblershoop and Griekwastad |
| Previous Type: | R |
| Previous Route: | 308 |
| Next Type: | R |
| Next Route: | 310 |
The R309 is a Regional Route in South Africa that connects Postmasburg with the N8 between Groblershoop and Griekwastad.[1]