American tennis player
Cooper Williams| Country (sports) |  United States |
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| Residence | Boca Raton, Florida |
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| Born | (2005-06-17)June 17, 2005 (age 20)
New York City |
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| Height | 190 cm (6 ft 3 in) |
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| Prize money | US $25,174 |
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| Singles |
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| Career record | 0–0(atATP Tour level,Grand Slam level, and inDavis Cup) |
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| Career titles | 0 |
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| Highest ranking | No. 660 (29 September 2025) |
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| Current ranking | No. 660 (29 September 2025) |
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| Doubles |
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| Career record | 0–0(at ATP Tour level, Grand Slam level, and in Davis Cup) |
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| Career titles | 0 |
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| Highest ranking | No. 473 (8 September 2023) |
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| Current ranking | No. 473 (29 September 2025) |
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| Grand Slam doubles results |
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| US Open | 2R (2025) |
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| Last updated on: 2 October 2025. |
Cooper Williams (born June 17, 2005) is an American tennis player. He has a career-high ATP singles ranking of world No. 660 achieved on 29 September 2025 and a doubles ranking of No. 473 achieved on 8 September 2025.
Williams won theboys' doubles title alongside compatriotLearner Tien at the2023 Australian Open in January 2023.[1][2]
Born and raised inNew York City, Williams attended St. Bernard's School on theUpper East Side from Kindergarten to seventh grade. He graduated from Dwight School Global in June 2023. Williams relocated toBoca Raton, Florida during the Covid pandemic, where he works with fitness coach, Richard Woodruff.[3][4]
Alongside partnerLearner Tien, Williams won thejunior Australian Open doubles in January 2023, defeatingAlexander Blockx andJoão Fonseca in the final 6–4, 6–4.[5][6]
In August 2025, he made his main draw grand slam debut alongsideTheodore Winegar at the2025 US Open, having received the US collegiate wildcard into the men's doubles having won the inaugural American Collegiate Wildcard Playoff in Orlando.[7] In the first round they defeated Czech pairingPetr Nouza andPatrik Rikl in straight sets before facing previous finalists and the No. 4 seedsKevin Krawietz andTim Puetz.[8][9]
Williams played his Freshman season of college tennis atHarvard, where he earned All-America singles status and 2024 NCAA Rookie of the Year. He led the Crimson to its highest NCAA ranking in program history, #6 in the nation. Williams now plays forDuke University.
ITF World Tennis Tour finals
[edit]Singles: 2 (2 titles)
[edit]| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
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| Win | 1–0 | Jun 2025 | M15 Monastir, Tunisia | WTT | Hard |  Marcus Walters | 6–3, 6–1 |
| Win | 2–0 | Jun 2025 | M15 Monastir, Tunisia | WTT | Hard |  Luca Potenza | 6–3, 7–5 |
Doubles: 6 (4 titles, 2 runner-ups)
[edit] | | Finals by surface |
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| Hard (4–2) | | Clay (0–0) |
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
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| Loss | 0–1 | Jul 2022 | M25 Edwardsville, US | WTT | Hard | Kweisi Kenyatte |  Makoto Ochi
Seita Watanabe | 6–7(1–7), 3–6 |
| Loss | 0–2 | Aug 2022 | M15 Memphis, US | WTT | Hard | Alex Michelsen | Millen Hurrion
 Finn Reynolds | 0–6, 1–6 |
| Win | 1–2 | Sep 2022 | M15 Fayetteville, US | WTT | Hard |  Alessio Basile |  Adrien Burdet
 Melvin Manuel | 6–4, 6–3 |
| Win | 2–2 | Mar 2023 | M25 Calabasas, US | WTT | Hard |  Edward Winter | Rohan Murali
Elijah Strode | 6–2, 6–3 |
| Win | 3–2 | Oct 2024 | M15 Winston-Salem, US | WTT | Hard | Daniel Milavsky | Ryan Fishback
Henry Lieberman | 6–1, 6–1 |
| Win | 4–2 | Jul 2025 | M15 Monastir, Tunisia | WTT | Hard | Matthew Rankin |  Daniil Bogatov
Evgenii Tiurnev | 6–3, 5–7, [10–5] |
Junior Grand Slam finals
[edit]Doubles: 1 (1 title)
[edit]
João Fonseca