William Armstrong
William Armstrong is the name of the following people:
- William Armstrong (politician) (1782-1865), American politician (Virginia)
- William Armstrong (painter) (1822-1914) Canadian painter
- William Armstrong (actor) (born 1954), Canadian actor
- William Armstrong, Baron Armstrong of Sanderstead (1915–1980), British government official and banker
- William Armstrong, 1st Baron Armstrong (1810–1900), British industrialist
- William Hepburn Armstrong (1824-1919), American politician
- William L. Armstrong (1937–2016), American politician and businessman
- William W. Armstrong (1833–1905), American printer, editor, and politician
See also: