Kaikhosru Shapurji Sorabji (1892-1988) was an English composer and pianist. Sorabji was born in Chingford, Essex, England, in 1892. From an early age Sorabji was privately educated and had a growing obsession with contemporary European and Russian music.

First considering a career as a music critic, Sorabji experimented with composition, resulting in a wave of musical creativity. Primarily a self-taught musician, Sorabji performed in London and Paris and in 1919 played his First Piano Sonata to an impressed Busoni, who wrote a glowing review. Sorabji made a few more concert appearances, his last one being in 1936. From then on he lived as a recluse, rejecting all public performances but continuing to compose.

Sorabji worked as a critic for The New Age and The New English Weekly until 1945. In 1975 he allowed his four-hour multi-movement piece Opus Clavicembalisticum to be recorded.

The American pianist Michael Habermann has studied, performed, and recorded Sorabji's music. In 1984 he wrote his dissertation for a Doctor of Musical Arts degree from the Peabody Conservatory, titled "A style analysis of the Nocturnes for solo piano by Kaikhosru Shapurji Sorabji with special emphasis on Le jardin parfumé."