Piecewo [pjɛˈt͡sɛvɔ] (German: Deutsch Fier; before 1926: Petzewo) is a village in the administrative district of Gmina Tarnówka, within Złotów County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) north-east of Tarnówka, 11 km (7 mi) west of Złotów, and 109 km (68 mi) north of the regional capital Poznań.
Before 1772 the area was part of Kingdom of Poland, 1772-1945 Prussia and Germany. For more on its history, see Złotów County.
The village has a population of 212.