Reardon might refer to the following

persons

• Beans Reardon (1897-1984), an American umpire in Major League Baseball
• Bill Reardon (* 1941), an American politician and educator
• Brian Reardon (* 1966), an American guitarist
• Casper Reardon (1907–1941), a classical and later jazz harpist
• David Reardon the American director of the Elliot Institute
• Dom Reardon, a British comics artist (2000AD)
• Foxo Reardon (1905-1955), an American comic strip creator (Bozo)
• Jeff Reardon (* 1955), an American baseball relief pitcher
• Jim Reardon, a director and storyboard consultant (The Simpsons)
• John Reardon (* 1975), a Canadian actor and former college football player
• John Reardon (singer) (1930–1988), an American baritone and actor
• Ken Reardon (1921–2008), a Canadian professional ice hockey player
• Mara Candelaria Reardon, an American politician and representative (Indiana Democrats)
• Michael Reardon (climber) (* 1974), an American professional Free Solo Climber, filmmaker, motivational speaker and writer
• Michael Reardon (English architect), an English architect, historic building consultant, and interior designer
• Michael Reardon (New Zealand) (1876-1945), a New Zealand political activist
• Nathan Reardon (* 1984), an Australian professional cricketer
• Phil Reardon (1883-1920), an American professional baseball player
• Ray Reardon (* 1932), a retired Welsh snooker player
• Steve Reardon (* 1971), an Australian rugby league player
• Stuart Reardon (* 1981), an English rugby league player
• Tara Reardon (* 1956), an American politician and representative (New Hampshire Democrats)

• Terry Reardon (1919-1993), a Canadian professional ice hockey player
• William Reardon Smith (1856–1935), a British shipowner

places

• Reardon, Illinois, a place in Illinois

• Edmund Reardon House, an historic house in Cambridge, Massachusetts
• Nelson-Reardon-Kennard House, a historic home at Abingdon, Harford County, Maryland

media

• And Miss Reardon Drinks A Little, an American play written by Paul Zindel
• A Night in the Life of Jimmy Reardon, a 1988 film
• Ed Reardon's Week, a sitcom on BBC Radio 4

other

• Reardon Smith Baronets, a title in the Baronetage of the United Kingdom