Krupniki [krupˈniki] is a village in the administrative district of Gmina Choroszcz, within Białystok County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 6 kilometres (4 mi) east of Choroszcz and 8 km (5 mi) north-west of the regional capital Białystok.

The village is considered part of Metropolitan Białystok in order to help economically develop the region.