Barbara Gracey Thompson MBE (27 July 1944 – 9 July 2022) was an English jazz saxophonist, flautist and composer. She studied clarinet, flute, piano and classical composition at the Royal College of Music, but the music of Duke Ellington and John Coltrane made her shift her interests to jazz and saxophone. She was married to drummer Jon Hiseman of Colosseum from 1967 until his death in 2018.
Around 1970, Thompson was part of Neil Ardley's New Jazz Orchestra