Piaseczno [pjaˈsɛt͡ʂnɔ] is a village in the administrative district of Gmina Gniew, within Tczew County, Pomeranian Voivodeship, in northern Poland.

[4] Piaseczno was a royal village of the Polish Crown, administratively located in the Tczew County in the Pomeranian Voivodeship.

[5] It was a popular Catholic pilgrimage destination and was often visited by starost of nearby Gniew and future King of Poland John III Sobieski.

[6] As king he ordered the construction of a new, greater vault in the local church of the Nativity of the Virgin Mary, and visited Piaseczno shortly before his death in 1696.

[7] In 1862, activist Juliusz Kraziewicz founded the oldest Polish agricultural cooperative (Włościańskie Towarzystwo Rolnicze) in the village.