Kyla Betty Greenbaum (5 February 1922 - 15 June 2017) was a British pianist and composer, the younger sister of conductor and composer Hyam Greenbaum. She gave the first UK performance of Arnold Schoenberg’s Piano Concerto in 1945 and the first of Prokofiev’s Second Piano Concerto in 1955. Her best known recordings include The Rio Grande (made in 1949) and Tchaikovsky's Piano Concerto No. 1 in B-flat minor (made in 1957). These were both reissued in 2017 on the CRQ label.