Siekluki [ɕɛˈkluki] is a village in the administrative district of Gmina Boćki, within Bielsk County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) west of Boćki, 22 km (14 mi) south-west of Bielsk Podlaski, and 56 km (35 mi) south of the regional capital Białystok.