Piecewo [pjɛˈt͡sɛvɔ] is a settlement in the administrative district of Gmina Wejherowo, within Wejherowo County, Pomeranian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) south-east of Wejherowo and 28 km (17 mi) north-west of the regional capital Gdańsk.