Susan Mascarin
Susan Mascarin Keane, born Susan Mascarin is a retired tennis player from the U.S. Her best singles result in a Grand Slam was the 1984 US Open, where she advanced to the fourth round.
Born in Grosse Pointe Shores, Michigan, Mascarin was the US Open Girls' Singles champion in 1980.
WTA Tour finals
Singles 1
| Outcome | No. | Date | Tournament | Surface | Opponent | Score |
| Runner-up | 1. | August 15, 1982 | Atlant, Georgia, USA | Hard |  Chris Evert | 3–6, 1–6 |
Doubles 2 (1-1)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Winner | 1. | April 30, 1986 | Phoenix, Arizona, USA | Hard | Betsy Nagelsen | Linda Gates Alycia Moulton | 6–3, 5–7, 6–4 |
| Runner-up | 2. | October 19, 1986 | Tokyo, Japan | Clay | Betsy Nagelsen | Sandy Collins Sharon Walsh | 1–6, 2–6 |