R-12 regional road (Montenegrin: Regionalni put R-12) (previously known as R-20 regional road) is a Montenegrin roadway.

[1] It serves as the best road connection to Petnjica Municipality and can be used as alternative to M-5 highway.

In January 2016, the Ministry of Transport and Maritime Affairs published bylaw on categorisation of state roads.

[1] With new categorisation, R-20 regional road was renamed as R-12 regional road.

This European road or road transport-related article is a stub.