Fallon is an Irish surname and refers to the clan name Ó Fallamháin or Ó Fallúin. "Fallon" is also an Irish non-gender specific first name and means "leader" or "granddaughter/grandson of a rich king." Notable people with the surname include:
Brian Fallon, Lead singer of the band 'The Gaslight Anthem'
Craig Fallon, judoka
Ed Fallon, Iowa politician and activist.
Fallon Bowman, guitarist
Fallon (actress), porn actress
James H. Fallon, neuroscientist
Jennifer Fallon, author
Jim Fallon, football player and coach
Jim Fallon, dual rugby code sportsman
Jimmy Fallon (born 1974), American actor, comedian, and late night talk show host
Kevin Fallon, Former New Zealand football (soccer) manager
Kieren Fallon, jockey
Matt Fallon, singer
Michael Fallon, British Conservative politician
Neil Fallon, singer, sometimes rhythm guitarist for the American rock band Clutch
Órla Fallon, Irish singer and harpist, soloist of Celtic Woman
Richard Fallon (disambiguation), multiple people
Rory Fallon, New Zealand international football (soccer) player
Sean Fallon (disambiguation), multiple people
Tiffany Fallon, Playmate
William J. Fallon, U.S. Navy Admiral, former Commander of Central Command
Siobhan Fallon Hogan (born 1961), "Saturday Night Live" actress/comedian.
Fallon Sherrock, Darts player (born 1994)