Ralf Hoyer (born 13 April 1950) is a German composer.
Born in Berlin, Hoyer studied sound engineering at the Hochschule für Musik "Hanns Eisler".
Afterwards, he was a sound director at VEB Deutsche Schallplatten Berlin and from 1977 to 1980, Meisterschüler [de] for composition with Ruth Zechlin and Georg Katzer at the Academy of Arts, Berlin.
From 1995 to 1998, he was chairman of the Berlin section of the Deutscher Komponistenverband [de].
From 2010 to 2013, he was chairman of the Berliner Gesellschaft für Neue Musik [de].