Barry Halliwell

Barry Halliwell
Born(1948-10-18)18 October 1948
NationalityBritish
Alma materUniversity of Oxford
Known forredox, glutathione, ascorbate
Scientific career
FieldsBiochemistry
InstitutionsKing's College London
National University of Singapore
ThesisThe Biochemistry of Plant Peroxisomes (1973)
Academic advisorsFrederick Whatley
Notable studentsChristine Foyer

Barry Halliwell (born 18 October 1949) is an English biochemist, chemist and university administrator, specialising in free radical metabolism in both animals and plants. His name is included in the "Foyer–Halliwell–Asada" pathway, a cellular process of hydrogen peroxide metabolism in plants and animals, named for the three principal discoverers, with Christine Foyer and Kozi Asada. He moved to Singapore in 2000, and served as Deputy President (Research and Technology) of the National University of Singapore (2006–15), where (as of 2025) he continues to hold a Distinguished Professorship.