Trzy Młyny [ˈtʂɨ ˈmwɨnɨ] is a settlement in the administrative district of Gmina Krokowa, within Puck County, Pomeranian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) south-east of Krokowa, 16 km (10 mi) west of Puck, and 52 km (32 mi) north-west of the regional capital Gdańsk.

For details of the history of the region, see History of Pomerania.