Gmina Kolsko is a rural gmina (administrative district) in Nowa Sól County, Lubusz Voivodeship, in western Poland. Its seat is the village of Kolsko, which lies approximately north-east of Nowa Sól and east of Zielona Góra.
The gmina covers an area of , and as of 2019 its total population is 3,320.
Gmina Kolsko contains the villages and settlements of GÃ Âuszyca, Jesiona, Jesionka, Karszynek, Kolsko, Konotop, Lipka, Marianki, Mesze, SÃ Âawocin, Strumianki, Strumiany, Ã ÂwiÃÂte, Tatarki, Tyrszeliny, UÃ Âcie and Zacisze.
Gmina Kolsko is bordered by the gminas of Bojadà Âa, Kargowa, Nowa Sól, Sà Âawa and Wolsztyn.