Jean Hepner (born October 25, 1958) is a former professional tennis player from the United States.
Hepner is notable for holding the record for participating in the longest women's tennis match in a match against Vicki Nelson-Dunbar at a tournament in Richmond, Virginia, in 1984, which lasted six hours and 31 minutes. Additionally, this match contains two other records. The match featured a 29-minute, 643-shot rally, the longest in professional tennis history. This match is also the longest professional match completed in a single day. Hepner reached the second round of the 1978 US Open, the 1983 French Open, and the 1983 US Open.