Gnieciuki [ɡɲɛˈt͡ɕuki] is a village in the administrative district of Gmina Zabłudów, within Białystok County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 3 kilometres (2 mi) south-east of Zabłudów and 19 km (12 mi) south-east of the regional capital Białystok.