Pieniążki [pjɛˈɲɔ̃ʂki] is a village in the administrative district of Gmina Grajewo, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 12 kilometres (7 mi) south of Grajewo and 65 km (40 mi) north-west of the regional capital Białystok.