Gmina Łochów is an urban-rural gmina (administrative district) in Węgrów County, Masovian Voivodeship, in east-central Poland. Its seat is the town of Łochów, which lies approximately 26 kilometres (16 mi) north-west of Węgrów and 60 km (37 mi) north-east of Warsaw.
The gmina covers an area of 194.98 square kilometres (75.3 sq mi), and as of 2006 its total population is 17,427 (out of which the population of Łochów amounts to 6,452, and the population of the rural part of the gmina is 10,975).