Henn is a both a surname and an Estonian masculine given name.

Notable people with the name include:

As a given name Henn-Ants Kurg (1898–1943), Estonian military colonel and diplomat Henn Pärn (born 1941), Estonian politician Henn Põlluaas (born 1960), Estonian politician Henn Põlluste (born 1952), Estonian wrestler and wrestling coach Henn Saari (1924–1999), Estonian linguist Henn Treial (1905–1941), Estonian journalist, editor and politician

As a surname Alexander Henn, German anthropologist Arthur Henn (disambiguation) Bernhart Henn (1817–1865), American politician Christian Henn (born 1964), German road racing cyclist Dirk Henn (born 1960), German-style board game designer Guy Henn (1909–1998), Australian doctor and politician Hans Henn (20th century), West German bobsledder Harry George Henn (1919–1994), American law professor Henry Henn (1858–1931), Church of England bishop Jaco Henn (born 1974), South African sport shooter John Henn (1941–2020), American volleyball player Jürgen Henn (born 1987), Estonian football manager Luca Henn (born 1997), German racing cyclist Mark Henn (born 1958), American animator Matthias Henn (born 1985), German footballer Pablo Henn (born 1982), Argentine rugby player Percy Henn (1865–1955), English-Australian clergyman and teacher Preston Henn (1931–2017), American entrepreneur Sean Henn (born 1981), American baseball player Steve Henn (born 1976), American poet and editor Sydney Henn (1861–1936), British politician Thomas Rice Henn (1901–1974), Irish literary critic William Henn (c. 1720 – 1796), Irish judge

See also Hehn and Hen (disambiguation) Henn., taxonomic author abbreviation of Paul Christoph Hennings (1841–1908), German mycologist and herbarium curator Henn-Collins Henna (disambiguation)