Pniewo is a village in the administrative district of Gmina Zatory, within Pułtusk County, Masovian Voivodeship, in east-central Poland. It lies approximately 8 km north-east of Zatory, 14 km south-east of Pułtusk, and 52 km north of Warsaw.

History

Pniewo was a private church village within the Kingdom of Poland, administratively located in the Masovian Voivodeship in the Greater Poland Province. During the German invasion of Poland, which started World War II, on September 9, 1939, Wehrmacht troops murdered a dozen or so Poles from the nearby town of Wyszków near the village (see also Nazi crimes against the Polish nation).