Wilanowo [vʲilaˈnɔvɔ] is a village in the administrative district of Gmina Mielnik, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 12 kilometres (7 mi) north-east of Mielnik, 24 km (15 mi) east of Siemiatycze, and 82 km (51 mi) south of the regional capital Białystok.