Gmina Mońki is an urban-rural gmina (administrative district) in Mońki County, Podlaskie Voivodeship, in northeastern Poland. Its seat is the town of Mońki, which lies approximately 40 kilometres (25 mi) northwest of the regional capital Białystok.
The gmina covers an area of 161.56 square kilometres (62.4 sq mi), and as of 2006 its total population is 15,611 (out of which the population of Mońki amounts to 10,455, and the population of the rural part of the gmina is 5,156).