Kurt Johann Rapf (15 February 1922 – 9 March 2007) was an Austrian composer, conductor and organist.
After his studies he was engaged as assistant to Hans Knappertsbusch at the Zurich Opera House during the 1948/1949 season.
In 1968 he took over a class "Repertoire Studies" for singers and instrumentalists at the Music and Arts University of the City of Vienna.
Shortly after the end of the Second World War, Rapf founded the "Collegium Musicum Wien" which he directed until 1956.
From 1970 he was[1] until 1987 head of the music department in the Cultural Office of the City of Vienna and from 1970[2] until 1983 president of the Austrian Composers' Association [de].