Krosno Odrzańskie County () is a unit of territorial administration and local government (powiat) in Lubusz Voivodeship, western Poland, on 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 Krosno Odrzańskie, which lies west of Zielona Góra and south of Gorzów Wielkopolski. The only other town in the county is Gubin, situated on the German border west of Krosno Odrzańskie.