Sielc [ɕɛlt͡s] is a village in the administrative district of Gmina Boćki, within Bielsk County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 10 kilometres (6 mi) west of Boćki, 26 km (16 mi) south-west of Bielsk Podlaski, and 57 km (35 mi) south of the regional capital Białystok.