Wasilków[vaˈɕilkuf] is a town in north-eastern Poland, about 8km north of Białystok, with 8,751 inhabitants (2004).
It is situated in Białystok County, in Podlaskie Voivodeship (since 1999, having previously been in Białystok Voivodeship (1975–1998) from 1975 to 1998).