Ryōhei Hirose (廣瀬 量平 Hirose Ryōhei?, July 17, 1930 in Hakodate, Hokkaidō, Japan – November 24, 2008 in Kyoto; given name also spelled Ryouhei)) was a Japanese composer.
He studied at the Tokyo National University of Fine Arts and Music, with Tomojirō Ikenouchi and Akio Yashiro. He served as a professor in the music department of the Kyoto City University of Arts from 1977 to 1996, afterwards filling various administrative posts there. He has also served as lecturer at the Mozarteum University of Salzburg (1997), Essen Music University (2003), the Kunitachi College of Music (1977–79), and the Tokyo National University of Fine Arts and Music (1991–1998).
He has composed for both Japanese and Western instruments, but is best known for his compositions for shakuhachi and recorder. He has also composed for viola da gamba.
Hirose's recorder music has been widely recorded. See Recorded Recorders for a comprehensive discography.