Flanagan is a common Irish surname. There were at least 3 separate clans in Ireland with no connection. In Gaelic the name is Ó Flannagáin and many variations exist today. Typically these variations include Flanagan, Flanigan, Flannigan, Flannaghan, O'Flanagan, O'Flannagain, Flaniken, Flenigen and more. All variations can have the prefix of "O" and the name may refer to:
The Gaelic name was derived from the word "flann," which means red or ruddy. The chief septs (clans) were found in the counties of Roscommon, Fermanagh, Monaghan and Offaly. In Connacht, they were a part of the royal O Connors and were located near Elphin, in Co. Roscommon. They were hereditary stewards to the Kings of Connacht.
The clan's motto is commonly reported to be the Latin phrase Certavi et Vici, meaning "I have fought and conquered"; this motto is also shared by the Byrne clan.
There is another motto, Latin, that is attributed to Ó Flannagáin Clan, Sept of Kelly being Fortuna audaces iuvat (juvat) or Fortune Favours the Bold.
Alex Flanagan, sportscaster
Anna Flanagan, player Australian field hockey team
Anthony Flanagan, British actor
Barry Flanagan, a Welsh sculptor
Bernard Joseph Flanagan, an American prelate of the Roman Catholic Church
Bob Flanagan, American writer
Bud Flanagan, English entertainer
Caitlin Flanagan, writer
Caroline Flanagan, President of Law Society of Scotland
Charles Flanagan, politician
Crista Flanagan, comedian, actress
David 'Dai' Flanagan, rugby union player
De Witt C. Flanagan, an American Democratic Party politician from New Jersey
Edward J. Flanagan, founder of Boys Town
Ed Flanagan (disambiguation), multiple people
Fionnula Flanagan, actress
Fred Flanagan (1924–2013), Australian rules footballer
Guy Flanagan, British actor
Hallie Flanagan, theatre director, producer
Harley Flanagan, musician
Helen Flanagan, actress
Ian Flanagan, tennis player
Jack Flanagan (Australian politician), Australian politician
James Flanagan (disambiguation), multiple people
John Flanagan (disambiguation), multiple people
Jon Flanagan, footballer
Kitty Flanagan, Australian comedian
Kyle Flanagan, American ice hockey player
Lauren Flanigan, an American operatic soprano
Maile Flanagan, American actress
Markus Flanagan, American actor
Martin Flanagan (journalist), journalist
Mary Flanagan, an American artist, author, educator, and designer.
Michael Flanagan (disambiguation), multiple people
Micky Flanagan, comedian
Mike Flanagan (disambiguation), multiple people
Nick Flanagan, Australian golfer
Oliver J. Flanagan, Irish politician
Owen Flanagan, philosopher
Patrick Flanagan, inventor
Paddy Flanagan, cyclist
Pauline Flanagan, actress
Peter Flanagan, an English rugby league footballer
Peter Flanagan (rugby union), Irish-Australian rugby union player
Ralph Flanagan, a big band leader, conductor, pianist, composer, and arranger for orchestras
Ralph Flanagan (swimmer), an American competition swimmer
Richard Flanagan, author, historian, film director
Roderick Flanagan, journalist, poet, historian
Ronnie Flanagan, former Chief Constable of the Police Service of Northern Ireland
Seán Flanagan, politician
Shalane Flanagan, middle distance runner
Shane Flanagan, Australian rugby league football coach
Steamer Flanagan, baseball player
Terence Flanagan, an Irish politician
Terry Flanagan (disambiguation)
Thomas Flanagan (disambiguation), multiple people
Tom Flanagan (disambiguation), multiple people
Tommy Flanagan (actor)
Tommy Flanagan, jazz pianist
Vester Flanagan, American news reporter and murderer
Walt Flanagan, a comic book store manager, reality television personality, podcaster, comic book artist, and songwriter
