Frode Gjerstad (born 24 March 1948) is a Norwegian jazz musician with alto saxophone as principal instrument, but he also plays other saxophones, clarinet, and flute. He has collaborated with Paal Nilssen-Love, Borah Bergman, Peter Brötzmann, Evan Parker, Derek Bailey, Bjørn Kjellemyr, Terje Isungset, William Parker, Sabir Mateen, John Stevens, Johnny Dyani, Kent Carter, and since 1979 has contributed to more than 50 recordings.