Osowo Leśne [ɔˈsɔvɔ ˈlɛɕnɛ] is a village in the administrative district of Gmina Lubichowo, within Starogard County, Pomeranian Voivodeship, in northern Poland. It lies approximately 5 kilometres (3 mi) west of Lubichowo, 18 km (11 mi) south-west of Starogard Gdański, and 60 km (37 mi) south of the regional capital Gdańsk. It is located within the ethnocultural region of Kociewie in the historic region of Pomerania.