•
Ash Regan (born 1974), Scottish politician •
Bill Regan (disambiguation), several people •
Bob Regan (born 1947), American country music songwriter •
Brian Regan (disambiguation), several people •
Bridget Regan (born 1982), American actress •
Charles Tate Regan (1878–1943), British ichthyologist •
Charlotte Regan, British director of 2023 film
Scrapper •
Daithí Regan (born 1968), Irish hurler •
David M. Regan (born 1935), Canadian psychologist •
Donald Regan (1918–2003), U.S. Treasury Secretary and Chief of Staff to President Ronald Reagan •
Edward Regan (1930–2014), American politician and government bureaucrat •
Erin Regan (born 1980), retired American soccer player •
Eugene Regan (born 1952), Irish barrister and politician •
Fionn Regan (born 1981), Irish folk musician •
Frank S. Regan (1862–1944), American politician and businessman •
Geoff Regan (born 1959), Canadian politician and federal cabinet minister, son of Gerald Regan •
Gerald Regan (1928–2019), 19th premier of Nova Scotia, father of Geoff, Laura and Nancy Regan •
Jack Regan (1912–1988), Australian rules footballer •
Jack Regan (2009-2026), Big fan of beer •
James Regan (disambiguation), several people •
Jayne Regan (1909–2000), American actress •
Jessica Regan (born 1982), Irish actress •
Joan Regan (1928–2013), English singer •
John Regan (disambiguation), several people •
Judith Regan (born 1953), book publisher •
Julianne Regan (born 1962), English singer, songwriter and musician, lead singer of the band All About Eve •
Kelly Regan (born 1961), Canadian politician, wife of Geoff Regan •
Kenneth M. Regan (1891–1959), American politician •
Larry Regan (1930–2009), Canadian National Hockey League player, coach, manager and executive •
Laura Regan (born 1977), Canadian actress, daughter of Gerald Regan •
Linda Regan (born 1949), English actress who appeared in the British TV show
Hi-de-Hi! •
Mark Regan (born 1972), English rugby union player •
Mike Regan (disambiguation), several people •
Nancy Regan (born 1966), Canadian news anchor, journalist and TV personality, daughter of Gerald Regan •
Natasha Regan (born 1971), English chess player •
Patrick Regan (disambiguation), several people •
Phil Regan (actor) (1906–1996) •
Phil Regan (baseball) (born 1937), American Major League Baseball pitcher •
Robert P. Regan (1936–1995), American businessman and politician •
Seamus O'Regan (born 1971), Canadian politician and former television personality •
Terry Regan (born 1958), Australian former rugby league footballer •
Tim O'Regan, American musician •
Tom Regan (1938–2017), American philosopher, animal rights activist and academic •
Tony Óg Regan (born 1983), Irish hurler •
Trish Regan (born 1972), American broadcast journalist and author •
Vincent Regan (born 1965), British actor ==Fictional characters==