Alexander Thomson (disambiguation)

Alexander Thomson (1817–1875) was a Scottish architect, also known as 'Greek' Thomson.

Alexander Thomson may also refer to:
 * Alexander Thomson (pioneer) (1798–1866), Australian pioneer and first mayor of Geelong, Victoria
 * Alexander Thomson (congressman) (1788–1848), US congressman from Pennsylvania
 * Sir Alexander Thomson (Baron of the Exchequer) (died 1817), Baron and then Chief Baron of the Exchequer
 * Alexander Thomson (minister) (c. 1593–1646), minister in the Church of Scotland
 * Alexander MacDonald Thomson (1863–1924), colonial treasurer of Hong Kong from 1899 to 1918
 * Alexander McDonald Thomson (1822–1898), speaker of the Wisconsin State Assembly
 * Alexander Raven Thomson (1899–1955), British fascist politician
 * Alexander Thomson, Lord Thomson (1914–1979), Scottish judge, senator of the College of Justice from 1965
 * Alexander Thomson (footballer) (1877–1959), Scottish footballer with Airdrieonians and Scotland
 * Alexander Thomson of Banchory (1798–1868) Scottish antiquary and agriculturalist