Nakły [ˈnakwɨ] is a village in the administrative district of Gmina Olszewo-Borki, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) west of Olszewo-Borki, 5 km (3 mi) west of Ostrołęka, and 101 km (63 mi) north of Warsaw.