| Tom Mercer | |
| Birth Date: | 10 November 1964 |
| Birth Place: | Pittsburgh, Pennsylvania |
| Height: | 6 ft 1 in |
| Careerprizemoney: | $93,715 |
| Singlesrecord: | 0–6 |
| Highestsinglesranking: | No. 303 (August 28, 1989) |
| Australianopenresult: | 1R (1989) |
| Doublesrecord: | 15–32 |
| Highestdoublesranking: | No. 112 (September 20, 1993) |
| Australianopendoublesresult: | 2R (1989) |
| Usopendoublesresult: | 2R (1993) |
Tom Mercer (born November 10, 1964) is a former professional tennis player from the United States.
Mercer enjoyed most of his tennis success while playing doubles. During his career, he made the finals in two doubles events. He achieved a career-high doubles ranking of World No. 112 in 1993.
| Result | W/L | Date | Tournament | Surface | Partner | Opponents | Score | |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | 1992 | Buzios, Brazil | Hard |  Mark Keil |  Maurice Ruah  Mario Tabares | 6–7, 7–6, 4–6 | |
| Loss | 0–2 | 1993 | Kitzbühel, Austria | Clay | Marius Barnard |  Juan Garat Roberto Saad | 4–6, 6–3, 3–6 |