Saint Fagan or Phagan (Latin: Faganus; 2nd century) was a possibly legendary bishop and apostle of Britain
Fagan or Phagan is also a Norman-Irish surname. Notable people with the surname include:
Alex Fagan, former chief of the San Francisco Police Department
Andrew Fagan, New Zealand singer, writer and songwriter
Ann Fagan Ginger, lawyer, teacher, writer, and political activist
Audrey Fagan, former Australian Capital Territory Chief Police Officer
Brian Fagan, archaeologist and anthropologist
Carson Fagan, Caymanian international football player
Chris Fagan, Australian football coach
Clifford Fagan, president of the Basketball Hall of Fame
Craig Fagan, English footballer
Cyril Fagan, Irish astrologer
David Fagan, New Zealand champion sheep shearer
Ed Fagan, American lawyer
Eleanora Fagan, also known as Billie Holiday, American jazz singer
Garth Fagan, modern dance choreographer
Gerald Fagan, Canadian Conductor
James Fleming Fagan, major general in the Confederate States Army during the American Civil War
Jeffrey Fagan, professor at Columbia Law School
Joe Fagan, manager of Liverpool F.C.
Joseph Fagan, American psychologist
Kevin Fagan (cartoonist) (born 1956), American cartoonist, creator of the syndicated comic strip Drabble
Kevin Fagan (doctor) (1909–1992), Australian doctor and World War II hero
Kevin Fagan (American football) (born 1963), former defensive end for the San Francisco 49ers
Laurie Fagan, Australian rugby league footballer
Louise Fagan, Canadian Director/Producer
Mark M. Fagan, former mayor of Jersey City, New Jersey
Mary Phagan, 13-year-old factory girl murdered in 1913, Atlanta, Georgia.
Mary Fagan, DCVO
Michael Fagan (intruder) (born 1948), Buckingham Palace intruder
Mike Fagan (born 1980), American bowler
Michael Fagan (software designer), credited with inventing the software inspection
Michael Fagan, a co-founder of Shambhala Publications
Myron Coureval Fagan, American playwright, editor, producer and cinematographer
Oisin Fagan, Irish Boxer, former WBO Middleweight title holder
Patsy Fagan, Irish snooker player
Roy Fagan, an Australian politician and Deputy Premier of Tasmania
Sean Fagan, Australian rugby league football writer
Shaun Fagan, Scottish association footballer