Henry Smyth

Henry Smyth may refer to:
 * Henry Smyth (Master of Magdalene College) (died 1642)
 * William Henry Smyth (1788–1865), British astronomer
 * Henry Smyth (British Army officer, born 1816) (1816–1891), British general
 * Henry Augustus Smyth (1825–1906), Governor of Malta
 * Henry Smyth (Canadian politician) (1841–1929)
 * Charles Henry Smyth Jr. (1866–1937), American geologist
 * Henry DeWolf Smyth (1898–1986), American physicist