Ragan is a surname. Notable people with the surname include:
Chuck Ragan, musician Dave Ragan, professional golfer David Ragan (born 1985), American stock car racer Emily Lee Sherwood Ragan (1839–1916), American author, journalist George Ragan (born 1981/82), better known by his stage name "Johnny 3 Tears", American musician Ken Ragan, stock car racer and father of David Sam Ragan, journalist, author, poet