Katie Volynets
Katie Volynets is an American tennis player. She has achieved a career-high WTA singles ranking of 387.
On August 11, 2019, Volynets won the USTA Girls 18s National Championships, 6–2, 6–4 over Emma Navarro, earning her a wild-card entry into the singles main draw of the 2019 US Open. She lost in the first round to Bianca Andreescu, who went on to win the tournament.
ITF Circuit finals
Singles: 1 (1 runner–up)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Nov 2019 | ITF Malibu, United States | 25,000 | Hard |  Bianca Turati | 6–4, 4–6, 4–6 |