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

See also

• Hank Smith (disambiguation)
• Harry Smyth (1910–1992), Canadian speed skater
• Harry Smythe (1904–1980), American baseball player
• Henry Smith (disambiguation)