Kozłowo [kɔˈzwɔvɔ] is a village in Nidzica County, Warmian-Masurian Voivodeship, in northern Poland. It is the seat of the gmina (administrative district) called Gmina Kozłowo.

Kozłowo is approximately 11 kilometres (7 mi) south-west of Nidzica and 55 km (34 mi) south of the regional capital Olsztyn.