Woźnawieś is a village in the administrative district of Gmina Rajgród, within Grajewo County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 9 km south-east of Rajgród, 21 km east of Grajewo, and 67 km north-west of the regional capital Białystok. It is located within the historic region of Podlachia. Woźnawieś is the birthplace of Józef Sienkiewicz, father of Polish writer and Nobel Prize laureate Henryk Sienkiewicz.