Henry Riley may refer to:
Henry Riley (South Carolina politician), state legislator in South Carolina Henry Riley (scientist) (1797–1848), British surgeon and naturalist, co-discovered the Thecodontosaurus Henry Hiram Riley (1813–1888), lawyer, writer, and state senator in Michigan Henry Thomas Riley (1816–1878), English translator, lexicographer, and antiquary H. Chauncey Riley (1835–1904), missionary bishop
See also Harry Riley (disambiguation) Henry Reilly, Northern Irish politician Henry J. Reilly (1881–1963), American soldier and journalist