Vicki Nelson-Dunbar (born September 25, 1962) is a former professional tennis player from the United States.

During her career she won one top-level singles title (at São Paulo in 1986), and reached the fourth round of the US Open in 1982.

Nelson-Dunbar holds the record for participating in the longest women's tennis match against Jean Hepner which lasted six hours and 31 minutes.

[2] This match also featured the longest rally in tennis history, a 643-shot rally that lasted 29 minutes.

[3] The game occurred on September 24, 1984, at a tournament in Richmond, Virginia.