Henry Dixon may refer to:
- Henry Aldous Dixon (1890–1967), U.S. representative from Utah
- Henry Dixon (Irish republican)
- Henry Dixon (photographer) (1820–1893), English photographer
- Henry Horatio Dixon (1869–1953), plant biologist and professor at Trinity College Dublin
- Henry Dixon (Gaelic footballer) (1918–1999), Irish Gaelic footballer
- Hal Dixon (biochemist) (1928–2008), his son, British biochemist
- Henry Hall Dixon (1822–1870), English sporting writer
- Henry Dixon (priest) (1874–1939), Anglican priest
- Harry D. Dixon (1925–2012), member of the Georgia House of Representatives
- Harry Dixon (cricketer) (born 2005), Australian cricketer