Otalżyno [ɔtalˈʐɨnɔ] is a village in the administrative district of Gmina Przodkowo, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 8 kilometres (5 mi) north-west of Przodkowo, 12 km (7 mi) north of Kartuzy, and 29 km (18 mi) west of the regional capital Gdańsk.

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