Janusz Józef Muniak (3 June 1941 – 31 January 2016) was a Polish jazz musician, saxophonist, flutist, arranger, and composer. He was one of the pioneers of free jazz in Europe, although later in life tended towards the mainstream. After 1976, he was the leader of several ensembles, and since 1991 he has been running the Jazz Club "U Muniaka" at Florianska 3 in Krakow, which, under his artistic management, became an important incubator of new talents. In the poll of Jazz Top 2011 of the monthly Jazz Forum, Janusz Muniak was voted the best saxophonist in Poland.