| Country: | MNE |
| Type: | M |
| Route: | 8 |
| Map: | M-8 main road MNE 2016.svg |
| Established: | 2010 |
| Direction A: | South |
| Terminus A: | in Lipci |
| Junction: |
|
| Direction B: | North |
| Terminus B: | in Vilusi |
| Length Km: | 38.6 |
| Length Round: | 1 |
| Municipalities: | Herceg Novi, Kotor, Nikšić |
| Previous Type: | M |
| Previous Route: | 7 |
| Next Type: | M |
| Next Route: | 9 |
M-8 highway (Magistralni put M-8) (previously known as R-11 regional road) is a Montenegrin roadway.
The R-11 regional road on this route was built in 2010.
In January 2016, the Ministry of Transport and Maritime Affairs published bylaw on categorisation of state roads.[1] With new categorisation, R-11 regional road was categorised as M-8 highway.