Hennessy (or Hennessey) is an Irish surname, being the anglicised form of Ó hAonghusa.
Notable people with the surname include:
- Arthur Hennessy (1876–1959), Australian pioneer rugby league identity
- Bill Hennessy (disambiguation)
- Carly Smithson (née Hennessy, born 1983), Irish singer
- Christie Hennessy (1945-2007), Irish singer
- Claire Hennessy (born 1986), Irish novelist
- Clinton Hennessy (born 1977), Irish sportsperson
- David Hennessy (1858–1890), police chief of New Orleans
- Esmé Frances Hennessy (born 1933), South African botanist
- George Hennessy, 1st Baron Windlesham (1877, 1953), British soldier and Conservative politician
- Jean Hennessy (1874–1944), French politician and member of the Hennessy family
- Jacqueline Hennessy (born 1968), journalist
- Jill Hennessy (born 1968), film and television actress
- Joe Hennessy (born 1956), former Irish sportsperson
- Archbishop John Hennessy (1825–1900), head of the Roman Catholic Archdiocese of Dubuque
- John L. Hennessy (born 1953), American computer scientist and current president of Stanford University
- John Pope Hennessy (1834–1891), Irish colonial administrator and politician - eighth governor of Hong Kong, fifteenth governor of Mauritius, MP for King's County
- Josh Hennessy (born 1985), professional ice hockey player
- Kevin Hennessy (born 1961), Irish retired sportsperson
- Larry Hennessy (1929–2008), American basketball player
- Matt Hennessy (born 1997), American football player
- Matthew Hennessy, Irish computer scientist
- Miranda Hennessy, British actress and comedian
- Neil Hennessy (born 1978), musician and music producer/engineer
- Patrick Hennessy, several people including
- Patrick Hennessy (painter), (1915–1980), an Irish artist
- Sir Patrick Hennessy (industrialist), (1898–1981), an Irish-born British industrialist,
- Peter Hennessy (born 1947), English historian of government
- Ryan Hennessy (born 1995), Irish singer and musician
- Séamus Hennessy (hurler, born 1989), Irish sportsperson
- Swan Hennessy (1866–1929), Irish-American composer resident in Paris
- Thomas Hennessy (politician), Irish politician
- Thomas Hennessy (American football) (born 1994), American football player
- W. Louis Hennessy (born 1955), 4th Circuit Court Associate Judge in Maryland, former Maryland Delegate
- William Hennessy (disambiguation)
See also edit
This page lists people with the surname Hennessy.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.