Costigan
Costigan is an Irish surname with higher concentrations in counties Laois, Tipperary and Kilkenny. Costigan is a branch of the Fitzpatricks of Upper Ossory, although the name may also independently derive from Hodgkin, a dimin. of Roger. Genetic evidence shows shared ancestry amongst Fitzpatricks and Costigans with ancestry in Upper Ossory Notable people with the surname include:
- Christopher Costigan, explorer of the Jordan River and Dead Sea in 1835
- Daniel Costigan, Commissioner of the Garda Síochána from 1952 to 1965
- Deirdre Costigan, British politician
- Edward P. Costigan, US senator from Colorado
- Francis Costigan, early Indiana architect
- Frank Costigan, Australian QC and commissioner in the Royal Commission on the activities of the Federated Ship Painters and Dockers Union
- Giovanni Costigan, historian
- George Costigan, a British television actor
- Howard Costigan, American political functionary
- James Costigan, screenwriter
- Jason Costigan, Australian Liberal National politician and former rugby commentator
- John Edward Costigan, American artist
- John Costigan
- Keith Costigan, former soccer player, and television sports analyst
- Mabel Cory Costigan, on the advisory council of the National Child Labor Committee and vice president of the National Consumers League.
- Michael Costigan
- Neville Costigan, Australian rugby league footballer
- Peter Costigan,, Australian journalist, former Lord Mayor of Melbourne
- Sandra Costigan, former field hockey player
- Billy Costigan, a character in the Martin Scorsese film, The Departed, played by Leonardo DiCaprio
- Captain Costigan, a character in the novel Pendennis, by William Makepeace Thackeray.
- Sailor Steve Costigan, a character created by Robert E. Howard
- Conway Costigan, a character in E.E. Smith's ''Triplanetary''