Highway M18 is a Ukrainian international highway (M-highway) connecting Kharkiv to the southern coast of Crimea in Yalta.

[1] The highway is also has an alternative route (M29) which runs parallel and designed as an expressway between Kharkiv and Novomoskovsk.

The section from Novomoskovsk to Yalta is part of European route E105.

During the 2022 Russian invasion of Ukraine, Russia took direct control of the whole section of the road in Kherson Oblast and a part of the Zaporizhzhia Oblast section.

Main route and connections to/intersections with other highways in Ukraine.