Wesołowo [vɛsɔˈwɔvɔ] is a village in the administrative district of Gmina Dąbrowa Białostocka, within Sokółka County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 4 kilometres (2 mi) west of Dąbrowa Białostocka, 31 km (19 mi) north-west of Sokółka, and 60 km (37 mi) north of the regional capital Białystok.