| Warren Keith Sinclair | |
| Native Name Lang: | English |
| Birth Date: | 9 March 1924 |
| Birth Place: | Dunedin, New Zealand |
| Death Place: | Southern California, US |
| Citizenship: | United States |
| Nationality: | New Zealand |
| Workplaces: | Dunedin Hospital, Dunedin, New Zealand Royal Cancer Hospital, Landon, England M.D. Anderson Hospital, Houston, Texas Argonne National Laboratory University of Chicago National Council on Radiation Protection and Measurements |
| Patrons: | Earnest Marsden Dr. Peter Jerram, radiotherapist |
| Alma Mater: | Otago Boys’ High School, 1941 University of Otago, BSc, 1944 University of Otago, MS in physics, 1945 University of London, PhD in physics, 1950 |
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| Doctoral Advisor: | Professor William Valentine (Val) Mayneord Royal Cancer Hospital |
| Academic Advisors: | Earnest Marsden |
| Known For: | work on Relative Biological Effectiveness |
| Awards: | Coolidge Award, 1986 Failla Lecture, 1987 H.M Parker Lecture, 1992 L.S. Taylor Lecture, 1993 National Sigma Xi Lecturer, 1992 to 1994 |
| Spouse: | Elizabeth (Joy) Warren |
| Children: | 2 |
Warren Keith Sinclair (9 March 1924 – 14 May 2014) was an international expert in radiation protection, science and medicine.[1]