Gilligan is a surname, and may refer to:
Amy Archer-Gilligan (1873–1962), American serial killer and poisoner Andrew Gilligan, British journalist Arthur Gilligan, English cricketer Billy Gilligan, Scottish footballer Carol Gilligan, American feminist ethicist and psychologist Harold Gilligan, English cricketer James Gilligan, American psychiatrist and author Jim Gilligan (born 1946), American college baseball coach Jimmy Gilligan, former English footballer John Gilligan, several people Mo Gilligan, British comedian Ruth Gilligan (born 1988), Irish writer and actress Ryan Gilligan, English footballer Sam Gilligan, Scottish footballer Sandy Gilligan, Scottish footballer Shannon Gilligan, author of interactive fiction and computer games Sheri Gilligan (born 1963), American politician Thomas W. Gilligan, dean of the McCombs School of Business at the University of Texas—Austin Tim Gilligan, American football player Tom Gilligan (footballer, born 1978), Australian footballer Vince Gilligan, screenwriter, director and producer
Fictional characters named Gilligan include: Gilligan, a fictional character in the TV series Gilligan's Island Stewie Griffin, a fictional character in the TV series Family Guy, whose middle name is Gilligan