Martin Charles Raff CBE FRS FMedSci (born 15 January 1938) is a Canadian/UK biologist and researcher who is an Emeritus Professor at the MRC Laboratory for Molecular Cell Biology (LMCB) at University College London (UCL).  His research has been in immunology, cell biology, and developmental neurobiology. 
He was born and educated in Montreal, and he obtained his B.Sc in 1959 and an M.D.C.M. in 1963, both from McGill University. 
He was an intern and Assistant Resident in Medicine at the Royal Victoria Hospital in Montreal (1963-65) and a Resident in Neurology at the Massachusetts General Hospital in Boston (1965-68). He did postdoctoral training in immunology with Avrion Mitchison at the National Institute for Medical Research in Mill Hill, London (1968–1971), after which he moved to University College London, where he has been since 1971. He was President of the British Society of Cell Biology (1991–95). He retired from active science in 2002, but he still serves on various scientific advisory boards in Europe and America. After retirement, when his grandson was diagnosed with autism, he became interested in the neurobiological basis of autism.  He is an original co-author of two widely used cell biology textbooks: Molecular Biology of the Cell and Essential Cell Biology.
He has received the following awards for his research:
- 1974: Member of the European Molecular Biology Organization
- 1985: Fellowship of the Royal Society 
- 1988: Member of Academia Europaea
- 1989: Feldberg Prize given by Feldberg Foundation 
- 1989: Honorary Member of the American Neurological Society
- 1998: Inaugural Fellow of the British Academy of Medical Sciences
- 1999: Foreign Honorary Member of the American Academy of Arts and Sciences
- 2001: Hamdan Award for Medical Research Excellence, awarded by Sheikh Hamdan bin Rashid Al Maktoum Award for Medical Sciences, United Arab Emirates
- 2003: Foreign Associate Member of the United States National Academy of Sciences
- 2005: Honorary Degree, McGill University
- 2006: The Biochemical Society Award
- 2007: Honorary Degree, Vrije Universiteit Brussel
- 2010: DART/NYU Biotechnology Achievement Award in Basic Science
- "Martin Raff". LMCB - MRC Laboratory for Molecular Cell Biology. Retrieved 2014-09-20.
- "Thoughts of a retired scientist: an interview with Martin Raff". Disease Models & Mechanisms, vol. 5 no. 4 419-422. July 2012. Retrieved 2014-09-20.
- ‘RAFF, Prof. Martin Charles*, Who's Who 2013, A & C Black, an imprint of Bloomsbury Publishing plc, 2013; online edn, Oxford University Press, Dec 2012 ; online edn, Nov 2012 accessed 7 Nov 2013
- "Martin Raff - Scientist - I hated science when I was a child". Web of Stories. Retrieved 2014-09-20.
- "Martin Raff Profile" (PDF). University College London. Retrieved 2014-09-20.
- "Q&A: What is autism? - A personal view". BMC Biology. BioMed Central. 12 April 2010. doi:10.1186/1741-7007-8-42. Retrieved 2014-09-20.
- Alberts B, Johnson A, Lewis J, Raff M, Roberts K, Walter P (2014). Molecular Biology of the Cell (6th ed.). Garland. ISBN 9780815344322.
- "Prizewinners of the Feldberg Foundation". Feldberg Foundation. Retrieved 2014-09-20.
- "Member: Martin Raff". United States National Academy of Sciences. Retrieved 2014-09-20.
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