Myślibórz County (Polish: powiat myśliborski) is a unit of territorial administration and local government (powiat) in the West Pomeranian Voivodeship (a voivodeship, or province that is found in northwestern Poland along the German border).

It came into being on January 1, 1999, as a result of the Polish local government reforms passed in 1998.

Its administrative seat is the town of Myślibórz, which lies 57 kilometres (35 mi) south of the regional capital Szczecin.

The county also contains the towns of Barlinek, lying 24 km (15 mi) east of Myślibórz, and Dębno, 25 km (16 mi) southwest of Myślibórz.

The county covers an area of 1,181.95 square kilometres (456.4 sq mi).