Irene Aebi (born July 27, 1939 in Zurich, Switzerland) is a Swiss singer, violinist and cellist. She is noted for her work with jazz saxophonist Steve Lacy, her husband, from the 1960s to his death in 2004. Initially a classically trained instrumentalist, she only began to sing at Lacy's request. In a review of a 1999 concert, critic Frank Rubolino describes Aebi as possessing a "brusque, forceful style of singing".