Aribert Reimann (born 4 March 1936) is a German composer, pianist and accompanist, known especially for his literary operas. His version of Shakespeare's King Lear, the opera Lear, was written at the suggestion of Dietrich Fischer-Dieskau, who sang the title role.
Reimann was born in Berlin. After studying composition, counterpoint and piano (under, among others, Boris Blacher) at the Berlin University of the Arts, Reimann took a job as a repetiteur at the Deutsche Oper Berlin. His first appearances as a pianist and accompanist were towards the end of the 1960s. In the early 1970s, he became a member of the Akademie der Künste in Berlin, and held a professorship in contemporary song at Berlin's Hochschule der Künste from 1983 to 1998.
Reimann's reputation as a composer has increased greatly with several great literary operas, including Lear and Das Schloss (The Castle). Besides these, he has written chamber music, orchestral works and songs. He has been honoured repeatedly, including the Grand Cross of Merit of the Federal Republic of Germany and the Order of Merit of Berlin.
Invited by Walter Fink, he was the seventh composer featured in the annual Komponistenporträt of the Rheingau Musik Festival in 1997, in songs and chamber music with the Auryn Quartet, playing the piano himself.