Houlihan
Houlihan or O'Houlihan (Irish: Ó hUallacháin; feminine Ní Uallacháin) is a surname of Irish Gaelic origin, from the Irish uallach meaning "proud". Notable people with the surname include:
- Adam Houlihan (born 1978), former Australian rules footballer
- Christopher Houlihan (born 1987), American concert organist
- Con Houlihan (1925–2012), Irish sportswriter
- Damian Houlihan (born 1975), former Australian rules footballer
- Gerard Houlihan, Irish retired Gaelic footballer
- Jim Houlihan (1898–1967), Irish sportsperson
- Joan Houlihan, American poet
- John C. Houlihan (1910–1986), American politician, the 43rd mayor of Oakland, California
- John J. Houlihan (1923–2003), American politician, Illinois state representative
- Mike Houlihan (born 1969), retired Irish sportsperson
- Pat Houlihan (1929–2006), English snooker player
- Patrick Houlihan (1889–1963), Irish politician
- Ryan Houlihan (born 1982), Australian rules footballer
- Shelby Houlihan (born 1993), American middle-distance runner
- Tim Houlihan (born 1989), Australian rules footballer
- Timmy Houlihan (born 1982), Irish sportsperson