Osetnik [ɔˈsɛtnik] (Kashubian: Osétnëk) is a settlement in the administrative district of Gmina Choczewo, within Wejherowo County, Pomeranian Voivodeship, in northern Poland. It lies approximately 12 kilometres (7 mi) north-west of Choczewo, 40 km (25 mi) north-west of Wejherowo, and 75 km (47 mi) north-west of the regional capital Gdańsk. It is located on the Slovincian Coast in the historic region of Pomerania.