Wiśniewko [viɕˈɲɛfkɔ] is a village in the administrative district of Gmina Wiśniewo, within Mława County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) north of Wiśniewo, 3 km (2 mi) south-west of Mława, and 108 km (67 mi) north-west of Warsaw.