Sadao Bekku (別宮貞雄, Bekku Sadao, May 24, 1922 in Tokyo – January 12, 2012 in Mitaka, Tokyo[1]) was a Japanese classical composer.
His works include five symphonies, film scores, a flute sonata, a piano concerto, choral work and art songs, and the opera, Prince Arima.
His work took strong influence from jazz.
His best-known works include the film score Matango (1963).
Bekku composed about 40 film scores from 1954 to 1978.