Narcyz Wiatr (nom-de-guerre "Zawoja" and "Władysław Brzoza"; 19 September 1907 – 21 April 1945) was a Polish political activist, member of the agrarian Polish People's Party (SL), a prisoner at the Bereza Kartuska prison and during World War II a leader of Peasants' Battalions (BCh) an anti-Nazi underground resistance movement, with the rank of colonel,.