Akitoshi Igarashi (五十嵐 明要, Igarashi Akitoshi, born June 2, 1932 in Tokyo) is a Japanese jazz saxophonist.
Igarashi did not begin playing saxophone until the age of 19, but within a year was playing in a band led by Shungo Sawada. He played with Shotaro Moriyasu in 1954 and following this played with a series of large ensembles, such as the West Liners, Nobuo Hara's Sharps and Flats, The Blue Coats, and the orchestra of Shigenori Obara.