Rolf Gehlhaar (born 30 December 1943) in Breslau (now Wrocław, Poland), is an American composer, Professor in Experimental Music at Coventry University and researcher in assistive technology for music. His works are for both acoustic and electro-acoustic media, though he is best known for his work with computer-controlled composition, and for his interactive installations such as Sound=Space (1985), HeadSpace (2000), CaDaReMi (2006), Walking on Earth (2007), and has for many years collaborated with Luis Miguel Girao of Artshare, Aveiro, Portugal ().