Thomas Thomson may refer to:
Tom Thomson (1877–1917), Canadian painter Thomas Thomson (apothecary) (died 1572), Scottish apothecary Thomas Thomson (advocate) (1768–1852), Scottish lawyer Thomas Thomson (botanist) (1817–1878), Scottish botanist Thomas Thomson (chemist) (1773–1852), Scottish chemist Thomas Inkerman Thomson (1855–1919), hardware merchant and political figure in Ontario, Canada Thomas Napier Thomson (1798–1869), Scottish minister and writer T. R. H. Thomson (Thomas Richard Heywood Thomson), English explorer and naturalist.
See also Tom Thomson (judoka) (born 1947), Canadian judoka and head coach of the Canadian Paralympic judo team Tom Thomson (Canadian football), Canadian football player Earl Thomson (1895–1971), Canadian-American Olympic champion hurdler, known as Tommy Thomson Thomas Thompson (disambiguation)