M-4 highway (Montenegrin: Magistralni put M-4) (formerly part of M-18 highway east of Podgorica) is a Montenegrin roadway.

It runs concurrently with European route E762.

Construction on the M-18 highway finished in 1965.

However, asphalt was not applied along the highway until years later.

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