Hennessey is an Irish surname, being the anglicised form of Ó hAonghusa. Families of this name were found in Kingdom of Uí Failghe and Kingdom of Desmond. Notable people with the surname include:
- Brad Hennessey (born 1980), baseball player
- Charlotte Hennessey (1873–1928), Canadian actress; mother of Mary Pickford (Gladys Louise Smith), Lottie Pickford and Jack Pickford
- Dorothy Hennessey (1913–2008), Roman Catholic religious sister and activist
- Gwen Hennessey (born 1932), Roman Catholic religious sister and activist
- John Hennessey, founder of Hennessey Performance Engineering
- Keith Hennessey, director of the U.S. National Economic Council
- Terry Hennessey (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
See also
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This page lists people with the surname Hennessey.
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.