Łabętnik [waˈbɛntnik] is a village in the administrative district of Gmina Bargłów Kościelny, within Augustów County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 8 kilometres (5 mi) north-west of Bargłów Kościelny, 15 km (9 mi) west of Augustów, and 83 km (52 mi) north of the regional capital Białystok.