Costigan

Costigan () is an Irish surname with higher concentrations in counties Laois, Tipperary and Kilkenny. Costigan is a branch of the Fitzpatricks (Mac Giolla Phádraig dynasty) 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 (1911–1979), Commissioner of the Garda Síochána from 1952 to 1965 * Edward P. Costigan (1874–1939), US senator from Colorado * Francis Costigan, early Indiana architect * Frank Costigan, (1931–2009) Australian QC and commissioner in the Royal Commission on the activities of the Federated Ship Painters and Dockers Union (known as the ''Costigan Commission'') * Giovanni Costigan (1905–1985), historian * George Costigan (born 1947), a British television actor * Howard Costigan (1904–1985), American political functionary * James Costigan, screenwriter * Jason Costigan, Australian Liberal National politician and former rugby commentator * John Edward Costigan, American artist * John Costigan (hurler) * Keith Costigan, former soccer player, and television sports analyst *Kyle Costigan, American Football Player, Strength and Conditioning Coach for the University of Wisconsin-Madison * Mabel Cory Costigan (1873–1951), on the advisory council of the National Child Labor Committee and vice president of the National Consumers League. * Michael Costigan (entrepreneur) * Michael Costigan (film producer) * Michael Costigan (youth speaker) * Neville Costigan, Australian rugby league footballer * Peter Costigan, (1935–2002), Australian journalist, former Lord Mayor of Melbourne * Sandra Costigan, former field hockey player

Fictional characters: * 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'' * Jerry, Grace and Russell Costigan, characters in Robert B. Parker's novel "A Catskill Eagle" Provided by Wikipedia