Koszewo [kɔˈʂɛvɔ] is a village in the administrative district of Gmina Stargard, within Stargard County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 12 kilometres (7 mi) south-west of Stargard and 27 km (17 mi) south-east of the regional capital Szczecin. The village has a population of 438.

It is situated on the eastern shore of Miedwie Lake.