Lakmos (Greek: Λάκμος) is a mountain in eastern Ioannina and western Trikala regional units.

[1] It stretches from the village Krapsi in the west to near Metsovo in the east, over a length of about 20 km (12 mi).

It is drained by the river Arachthos and its tributaries to the north, west and south, and by the Acheloos to the east.

Other places in the mountains are Anthousa in the southeast, Anthochori in the north, Megali Gotista in the west and Vathypedo in the southwest.

The A2 Egnatia Odos motorway (Igoumenitsa - Ioannina - Kozani - Thessaloniki - Alexandroupolis) passes north of the mountains.