Pniewo [ˈpɲɛvɔ] is a village in the administrative district of Gmina Łomża, within Łomża County, Podlaskie Voivodeship, in north-eastern Poland.

[1] It lies approximately 11 kilometres (7 mi) south-east of Łomża and 65 km (40 mi) west of the regional capital Białystok.

After the joint German-Soviet invasion of Poland, which started World War II, the village was occupied by the Soviet Union from 1939 to 1941, and then by Nazi Germany from 1941 to 1944.

In 1942–1943, the Germans massacred around 400 Poles and Jews in the Pniewo forest.

This Łomża County location article is a stub.