George Armstrong may refer to:
Politics and law George Robert Armstrong (1819–1896), American politician; mayor of Omaha, Nebraska George Armstrong (New Zealand politician) (1822–1905), Member of Parliament in Canterbury, New Zealand George W. Armstrong (1827–1877), American politician; first state treasurer of Minnesota George S. Armstrong (1867–1947), Canadian politician; mayor of Edmonton, Alberta George Armstrong (Manitoba politician) (1870–1956), Canadian politician and labour activist George C. Armstrong (1872–1950), American newspaper editor, businessman, and Illinois state senator George Thomas Armstrong (1881–1941), Canadian politician in Manitoba
Sports George Armstrong (cricketer) (1882–1956), Australian cricketer Mule Armstrong (George Isaac Armstrong, 1885–1954), American baseball player George Armstrong (baseball) (1924–1993), American baseball player George Armstrong (ice hockey) (1930–2021), Canadian ice hockey player George Armstrong (footballer) (1944–2000), English football player
Others George Armstrong (physician) (c. 1720–1789), English physician George Dod Armstrong (1813–1899), Presbyterian minister and writer George Armstrong (engineer) (1822–1901), English railway engineer George Frederick Armstrong (1842–1900), English professor of engineering George Johnson Armstrong (1902–1941), first British citizen to be executed under the Treachery Act 1940 George Armstrong (actor) (1962–2023), English actor Sir George Carlyon Hughes Armstrong (1836–1907), English journalist and newspaper proprietor George Armstrong (1843 –1910), Scottish surveyor
See also George Armstrong Custer (1839–1876), United States Army officer and cavalry commander in the American Civil War and the Indian Wars