Wasilówka [vaɕiˈlufka] is a village in the administrative district of Gmina Janów, within Sokółka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) east of Janów, 17 km (11 mi) north-west of Sokółka, and 40 km (25 mi) north of the regional capital Białystok.