Męciny [mɛnˈt͡ɕinɨ], also known as Czarnica-Młyn [t͡ʂarˈnit͡sa ˈmwɨn] is a village in Gmina Miastko, Bytów County, Pomeranian Voivodeship, in northern Poland. It lies approximately 24 kilometres (15 mi) south-west of Bytów and 102 km (63 mi) south-west of Gdańsk (capital city of the Pomeranian Voivodeship).

From 1975 to 1998 the village was in the administrative division called Słupsk Voivodeship, but that administrative division was superseded in 1999 by Pomeranian Voivodeship and another administrative division.

Męciny is located near the Wieprza, which is a tributary of the Baltic Sea.

• "GUS (Central Statistical Office)" (in Polish).
• Map of Gmina Miastko