Wykowo [vɨˈkɔvɔ] is a settlement in the administrative district of Gmina Rajgród, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 15 kilometres (9 mi) south-west of Rajgród, 10 km (6 mi) south-east of Grajewo, and 68 km (42 mi) north-west of the regional capital Białystok.