Henry Allen may refer to:
Politics Henry Allen Jr. (1823/24–1856), American politician, member of the Mississippi State Senate Henry Allen (Wisconsin politician), Wisconsin state assemblyman Henry C. Allen (1844–1925), American politician and farmer from Virginia Henry C. Allen (Virginia politician) (1838–1889) Henry C. Allen (New Jersey politician) (1872–1942), American Republican Party politician in New Jersey Henry D. Allen (1854–1924), U.S. representative from Kentucky Henry Edgarton Allen (1864–1924), Canadian politician and merchant Henry J. Allen (1868–1950), governor of Kansas Henry Allen (mayor of Gloucester) (1815–1893), mayor of Gloucester, England, 1873 Henry George Allen (1815–1908), British member of parliament for Pembroke, 1880–1885, and Pembroke and Haverfordwest, 1885–1886 Henry Watkins Allen (1820–1866), American soldier and politician
Other Henry Allen (Colorado settler) (c. 1815–1871), American miner and leader of early Denver, Colorado Henry Allen (equestrian) (1889–1971), American Olympic equestrian Henry Allen (footballer) (1898–1976), English footballer Henry Allen (journalist) (born 1941), American journalist, poet, musician and critic Henry Wilson Allen (1912–1991), American author and screenwriter Henry Allen (theologian) (1748–1784), Christian hymnwriter Red Allen (Henry Allen, 1908–1967), jazz trumpeter Henry Robinson Allen (1809–1876), Irish-born London-based opera singer Henry Tureman Allen (1859–1930), Alaskan explorer and military leader Henry Kaleialoha Allen (1933–2022), Hawaiian steel guitarist and singer
Characters Henry Allen (comics), a DC Comics character and the father of Barry Allen / Flash Henry Allen (The Flash), a version of the character from the 2014 TV series, The Flash
See also Henry Allan (disambiguation) Harry Allen (disambiguation) Alan Henry (1947–2016), Grand Prix reporter Alan Henry, editor at Lifehacker