Gmina Kałuszyn is an urban-rural gmina in Mińsk County, Masovian Voivodeship, in east-central Poland. Its seat is the town of Kałuszyn, which lies approximately 17 kilometres east of Mińsk Mazowiecki and 56 km east of Warsaw. The gmina covers an area of 94.52 square kilometres, and as of 2006 its total population is 6,190.