Pęplin [ˈpɛmplin] is a settlement in the administrative district of Gmina Ustka, within Słupsk County, Pomeranian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) south of Ustka, 16 km (10 mi) north-west of Słupsk, and 119 km (74 mi) west of the regional capital Gdańsk.

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