Jack Francis Lee Laver (born 9 March 1917, in Malvern, Melbourne, Victoria) was a Tasmanian cricket player, who played 13 matches of first class cricket for Tasmania between 1946 and 1952.
Laver was an off-spin bowler and lower-order batsman. He made his highest first-class score of 93 on his debut, playing against Victoria in 1946-47. His innings took only 94 minutes. Two weeks later he took his best bowling figures of 5 for 26 (off only 34 balls) against the touring MCC team, including the wickets of Denis Compton and Bill Edrich. He captained Tasmania against Victoria in the 1950-51 season, but Tasmania lost the match by nine wickets.
He served in World War II as a lieutenant in the 6th Australian Division Provost Company.
In March 2017 he became only the third Australian first-class cricketer, after Ted Martin and Harold Stapleton, to reach 100 years of age.