Mengen is a rural town in Bolu Province in the Black Sea region of western Turkey, 58 km (36 mi) from the provincial center city of Bolu.

It is the seat of Mengen District.

[1] The mayor is Turhan Bulut (CHP).

Mengen is 180 km (110 mi) from Ankara.

This geographical article about a location in Bolu Province, Turkey is a stub.