Henry Armstrong (1912–1988) was an American boxer

Henry Armstrong may also refer to: Henry W. Armstrong (1879–1951), American boxer and composer Henry Edward Armstrong (1848–1937), English chemist Henry Armstrong (umpire) (1885–1945), Australian cricket Test match umpire Henry Armstrong (Northern Ireland politician) (1844–1943), Northern Irish politician Henry Armstrong (Idaho politician), member of the Idaho House of Representatives

See also Harry Armstrong (disambiguation)