Łyński Młyn [ˈwɨɲski ˈmwɨn] is a settlement in the administrative district of Gmina Nidzica, within Nidzica County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) north of Nidzica and 39 km (24 mi) south of the regional capital Olsztyn.