Harold “Harry” Klein (born on December 25, 1928 in Bethnal Green, died in London on 30 June 2010) was an English jazz saxophonist. Early in his career, Klein played with Nat Gonella in the late 1940s. He then played with Bill Le Sage and Kenny Baker before going on tour with Stan Kenton in 1956. Klein also worked with Stan Tracey for several years in the 1950s and 1960s. He also recorded with Tubby Hayes, Sammy Davis, Jr., Victor Feldman, Dudley Moore, and Champion Jack Dupree.
In the 1960s and 1970s Klein began working as a studio musician for English pop and rock bands. Klein played clarinet and sax on the Beatles’ “The White Album”. He is also one of the four saxophonists (along with Ronnie Scott) who play on “Lady Madonna”. Other credits include playing on records by Caravan.