John Brian Helliwell FRSE FIMA (1924–1992) was a British mathematician and astrophysicist.
He was educated at Goole Grammar School He then studied at the University of Leeds, graduating with a BSc in 1945.
His studies were interrupted by the Second World War during which he served first at the Royal Aircraft Establishment in Farnborough then in the gas department of Metropolitan-Vickers in Manchester.
[2] After his PhD he remained in academia, first at Birmingham and Manchester, then as a Lecturer at the Royal College of Science and Technology in Glasgow, now known as Strathclyde University.
His proposers were Donald Pack, Benjamin Noble, Reginald Lord, and Patrick Dunbar Ritchie.