Bolszewo [bɔlˈʂɛvɔ] (Kashubian: Bòlszéwò; German: Bohlschau) is a large village in the administrative district of Gmina Wejherowo, within Wejherowo County, Pomeranian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) north-west of Wejherowo and 42 km (26 mi) north-west of the regional capital Gdańsk. It is located in the ethnocultural region of Kashubia in the historic region of Pomerania. The village has a population of 7,064.