Ian Grant (physicist)
Ian Philip Grant, DPhil; FRS; CMath; FIMA, FRAS, FInstP (born 15 December 1930) is a British mathematical physicist. He is Emeritus Professor of Mathematical Physics at the University of Oxford and was elected a fellow of the Royal Society in 1992. He is a pioneer in the field of computational physics and is internationally recognised as the principal author of GRASP, the General Relativistic Atomic Structure Program.