The Prissani or Pyritzans (Polish: Pyrzyczanie) were a medieval tribe in Pomerania. They were first mentioned as "Prissani" with 70 civitas by the Bavarian Geographer, ca. 845. They are associated with the Pomeranians, and were based in the lower Oder region around the modern town of Pyrzyce (Pyritz). The mention in the Bavarian Geographer is the only written record referring to the tribe.
In the late 10th century, the Polish dukes Mieszko I and Boles?aw I Chrobry subdued parts of Pomerania, but did not succeed to subdue the lower Oder region. In 1121/22, the Polish duke Boles?aw III Wrymouth conquered the area along with the Duchy of Pomerania under Wartislaw I. The tribe was subsequently Christianized, missionary Otto of Bamberg celebrated the first mass baptism in Pyrzyce. A separate tribal identity, if upheld so far, vanished when it was integrated in the Duchy of Pomerania.