Graham Simpson may refer to:
Graham Simpson (businessman) (born 1946), former chairman of Watford F.C. and owner of Simpson Travel Graham Simpson (doctor), practitioner of proactive medicine and founding member of American Holistic Medical Association Graham Simpson (musician) (1943–2012), founding member and bassist of Roxy Music Graham Simpson (politician) (born 1972), Scottish politician and member of the Scottish Parliament for Central Scotland Graham Simpson (badminton) (born 1979), Scottish badminton player