Nitki [ˈɲitkʲi] is a village in the administrative district of Gmina Biała Piska, within Pisz County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 14 kilometres (9 mi) north of Biała Piska, 25 km (16 mi) north-east of Pisz, and 107 km (66 mi) east of the regional capital Olsztyn.