Hennessey is an Irish surname, being the anglicised form of

Ó hAonghusa Ó hAonghusa is the surname of at least two distinct Gaelic-Irish families. It is now anglicised as Hennessy and Hennessey. One Ó hAonghusa family were located at Cill Bheagáin, in the Kingdom of Uí Failghe, in the Irish midlands. Another fa ...

. Families of this name were found in

Kingdom of Uí Failghe The kingdom of Uí Fháilghe, ''Uí Failge'' (early spelling) or ''Uíbh Fhailí'' (modern spelling) () was a Gaelic-Irish kingdom which existed to 1550, the name of which (though not the territory) is preserved in the name of County Offaly ( Iris ...

and

Kingdom of Desmond The Kingdom of Desmond () was a historic kingdom in southwestern Ireland. It was founded in 1118 by Tadhg Mac Cárthaigh, King of Munster when the Treaty of Glanmire formally divided the Kingdom of Munster into Desmond and Thomond (, "Nor ...

. Notable people with the surname include: *

Brad Hennessey Brad Martin Hennessey (born February 7, 1980) is an American former professional baseball pitcher. He played in Major League Baseball (MLB) for the San Francisco Giants. He stands tall and weighs . He played for the Giants from 2004–08 and ...

(born 1980), baseball player *

Charlotte Hennessey Charlotte Hennessey Smith (Pickford) (January 1, 1873 – March 22, 1928) was a Canadian silent film actress and the mother of Mary, Lottie, and Jack Pickford, who all became actors. Early life and marriage Born in Toronto, Ontario, Can ...

(1873–1928), Canadian actress; mother of Mary Pickford (Gladys Louise Smith),

Lottie Pickford Charlotte Smith (June 9, 1893 – December 9, 1936), known professionally as Lottie Pickford, was a Canadian-American silent film actress and socialite. She was the younger sister of fellow actress Mary Pickford and elder sister of actor Jack ...

and

Jack Pickford John Charles Smith (August 18, 1896 – January 3, 1933), known professionally as Jack Pickford, was a Canadian-American actor, film director and producer. He was the younger brother of actresses Mary and Lottie Pickford. After their father ...

Dan Hennessey Dan Hennessey (born August 25)https://www.behindthevoiceactors.com/Dan-Hennessey/ is a Canadian voice director and voice actor who, early on in his career, performed with a children's comedy troupe The Zoo Factory (with John Stocker, Bruce Gord ...

(born 1941), Canadian voice actor * Dorothy Hennessey (1913–2008), Roman Catholic religious sister and activist *

Gwen Hennessey Gwen Hennessey, O.S.F., (born 1932) is a Roman Catholic Franciscan Sister and peace activist, most widely known for her protests against the School of the Americas. Biography Hennessey was born on September 29, 1932, on a farm in Buchanan County, ...

(born 1932), Roman Catholic religious sister and activist *John Hennessey, founder of

Hennessey Performance Engineering Hennessey Performance Engineering is an American hypercar manufacturer and high-performance vehicle creator. In addition to building the Venom F5 hypercar, the company specializes in 'making fast cars faster' modifying sports cars from several ...

* Keith Hennessey, director of the U.S. National Economic Council *

Terry Hennessey William Terrence Hennessey (born 1 September 1942) is a Welsh former international footballer who gained 39 caps for Wales. He played as a defender and made 400 Football League appearances in the 1960s and 1970s with Birmingham City, Nottingha ...

(born 1942), Welsh footballer * Wayne Hennessey (born 1987), Welsh footballer * David Hennessey (1858-1890), American police chief Fictional characters: *Alistair Hennessey, fictional rival to the eponymous character of ''

The Life Aquatic with Steve Zissou ''The Life Aquatic with Steve Zissou'' is a 2004 American adventure comedy-drama film written by Wes Anderson and Noah Baumbach and directed by Anderson. It is Anderson's fourth feature-length film and was released in the United States on Decembe ...

See also