Hannigan

Hannigan is a surname. A spelling variant is Hannegan. Notable people with the surname include:

Hannigan

 * Alyson Hannigan (born 1974), American actress
 * Barbara Hannigan (born 1971), Canadian soprano
 * Ben Hannigan (1943–2021), Irish footballer
 * Brendan Hannigan, Irish entrepreneur and computer scientist
 * Dominic Hannigan (born 1965), Irish politician
 * Ed Hannigan (born 1951), American comic book writer and artist
 * Ernie Hannigan (1943–2015), Scottish footballer
 * George Hannigan (born 1987), Irish Gaelic footballer
 * Gord Hannigan (1929–1966), Canadian ice hockey player
 * James Hannigan (born 1971), British composer
 * James Hannigan (bishop) (1928–1994), Irish-born prelate
 * John Hannigan (1938/9–2014), Irish Gaelic footballer
 * Johnny Hannigan (1933–2020), Scottish footballer
 * Joseph Hannigan (1904–1957), Irish politician and medical practitioner
 * Katherine Hannigan (born 1962), American writer
 * Lisa Hannigan (born 1981), Irish singer and songwriter
 * Pat Hannigan (1936–2007), Canadian ice hockey player and television analyst
 * Pat Hannigan (rugby) (1887–1964), New Zealand rugby league footballer
 * Patrick Hannigan (born 1982), American soccer player
 * Ray Hannigan (1927–2020), Canadian ice hockey player
 * Richard Hannigan, Scottish footballer
 * Robert Hannigan (born 1965), senior British civil servant and author
 * Robyn E. Hannigan, American academic in the field of science
 * Steáfán Hannigan, Irish musician, author, composer, audio engineer, musicologist and instrument maker
 * Teresa Hannigan, Canadian film and television editor
 * Thomas M. Hannigan (1940–2018), American businessman and politician

Fictional characters:
 * Miss Agatha Hannigan, fictional character in Annie
 * Mimzy Hannigan, fictional character in Hazbin Hotel
 * Daniel Hannigan (disambiguation), multiple characters

Hannegan

 * Bryan Hannegan, American scientific administrator
 * Edward A. Hannegan (1807–1859), American politician from Indiana
 * Robert E. Hannegan (1903–1949), American politician from Missouri
 * Tom Hannegan (1970–2021), American businessman and politician from Missouri