Gmina Maszewo is a rural gmina (administrative district) in Krosno Odrzańskie County, Lubusz Voivodeship, in western Poland. Its seat is the village of Maszewo, which lies approximately 14 kilometres (9 mi) west of Krosno Odrzańskie and 44 km (27 mi) west of Zielona Góra. The gmina covers an area of 213.56 square kilometres (82.5 sq mi), and as of 2019 its total population is 2,812. The gmina contains part of the protected area called Krzesin Landscape Park.