John, Jack, or Johnny Kelley may refer to:
Sports Jack Kelley (ice hockey) (1927–2020), American ice hockey coach John Kelley (ice hockey) (1907–1986), American ice hockey player John J. Kelley (1930–2011), American runner, winner of the 1957 Boston Marathon; "Kelley the Younger" Johnny Kelley (1907–2004), American runner, winner of the 1935 and 1945 Boston Marathons; "Kelley the Elder"
Other Jack Kelley (politician), New Hampshire state legislator John Kelley (diplomat), acting U.S. alternate representative to the United Nations John Kelley (criminal), reputed mobster who was an associate of the Patriarca crime family John C. Kelley, American television writer and producer John Edward Kelley (1853–1941), U.S. Representative from South Dakota John L. Kelley (1916–1999), American mathematician John William Kelley (born 1963), American serial killer Jack Kelley (journalist), USA Today reporter John Kelley (Medal of Honor), Irish-born recipient of the Medal of Honor
See also Jon Kelley (born 1965), American sports journalist, author, producer, and television personality John Kelly (disambiguation) John Calley (1930–2011), American film studio executive and producer John Calley (engineer) (1663–1725), British