Wojnówka [vɔi̯ˈnufka] is a village in the administrative district of Gmina Wiśniewo, within Mława County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) north-west of Wiśniewo, 5 km (3 mi) south-west of Mława, and 107 km (66 mi) north-west of Warsaw.