Siekierka [ɕɛˈkʲɛrka] is a village in the administrative district of Gmina Sidra, within Sokółka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 3 kilometres (2 mi) west of Sidra, 18 km (11 mi) north of Sokółka, and 51 km (32 mi) north of the regional capital Białystok.