M-9 highway () (previously known as R-12 regional road) is a Montenegrin roadway.
History First section from Vilusi to Petrovići of then R-12 regional road was reconstructed and upgraded in 2012. Second and final section from Petrovići to border crossing Vraćenovići is being reconstructed and should be finished in 2017. http://www.onogost.me/drustvo/vracenovici-pocela-rekonstrukcija-posljednje-dionice-puta-ka-bih (Montenegrin)
In January 2016, the Ministry of Transport and Maritime Affairs published bylaw on categorisation of state roads. With new categorisation, R-12 regional road was categorised as M-8 highway.
Major intersections
References