Janowo (Polish pronunciation: [jaˈnɔvɔ]) is a village in the administrative district of Gmina Sierakowice, within Kartuzy County, Pomeranian Voivodeship, in northern Poland. It lies approximately 3 kilometres (2 mi) south of Sierakowice, 21 km (13 mi) west of Kartuzy, and 49 km (30 mi) west of the regional capital Gdańsk.