Sadao Watanabe (渡辺 貞夫, Watanabe Sadao) (born February 1, 1933) is a Japanese musician who plays the alto saxophone, sopranino saxophone and flute. He is known for his bossa nova recordings although his work encompasses a large range of styles with collaborations from musicians all over the world.
Born in Utsunomiya, Japan, Sadao first began learning music at the age of 18.
In 1962 he left Japan to study at Berklee College of Music in Boston.
He began performing professionally in 1953. By 1958 he had established himself as a world-class saxophonist having performed with leading musicians and quartets.
In addition to his musical career, Watanabe has also published six photography books in Japan.
Watanabe is also a citizen of United States. He lives in Los Angeles, California.