Thomas or Tom Blackwell may refer to:
Thomas Blackwell (principal) (1660–1728), principal of Marischal College Thomas Blackwell (scholar) (1701–1757), Scottish classical scholar, son of above Thomas Evans Blackwell (1819–1863), English civil engineer Thomas Blackwell (1804–1879), British co-founder of Crosse & Blackwell Tom Blackwell (1938–2020), American photorealist painter Thomas W. Blackwell (1958–2017), American politician
See also Blackwell (surname)