Rolf Martinsson (born 1 May 1956 in Glimåkra, Skåne, Sweden) is a Swedish composer.
Martinsson studied composition at Malmö Academy of Music, Lund University 1981-85 under Brian Ferneyhough, Sven-David Sandström, Hans Eklund, Sven-Eric Johanson, Jan W. Morthenson and Sven-Erik Bäck.
In 1984 he was the producer for UNM (Ung nordisk musik), Young Scandinavian music, in Malmö and in 1986 was elected into the Association of Swedish composers.
Since 2002 he has been artistic director (for new music) of the Malmö Symphony Orchestra.
Several pieces have been commissioned by Swedish and overseas ensembles.