Glenn Gregory (born Glenn Peter Gregory 16 May 1958, Sheffield, England) is an English musician. A founding member of Heaven 17, he was partly responsible for hit records such as "Temptation".

Gregory had known the founding members of The Human League for many years. He had been singing and playing bass in bands with Ian Craig Marsh since 1973. In early 1981 he was contacted by Martyn Ware after the original membership of The Human League split, and was asked to join Heaven 17.