Allan McLeod Cormack, South African-English physicist and academic, Nobel Prize laureate (b. 1924)
Allan MacLeod Cormack (February 23, 1924 – May 7, 1998) was a South African American physicist who won the 1979 Nobel Prize in Physiology or Medicine (along with Godfrey Hounsfield) for his work on X-ray computed tomography (CT).