Jack Kennedy (born June 4, 2008) is an American tennis player. He has a career-high ATP singles ranking of No. 856 achieved on February 16, 2026 and a doubles ranking of No. 1,546, reached on December 1, 2025.
Kennedy won the boys' doubles title at the 2025 US Open, with compatriot Keaton Hance.
Kennedy was born in Huntington, New York, to Bryan and Jeannie Kennedy. He trains at Robbie Wagner Tennis in Glen Cove, New York.
Kennedy has good results on the ITF junior circuit. In July 2022, he won both the singles and doubles titles at the USTA Boys' 14 National Clay Court Championships. That December, he reached the final of the U14 Junior Orange Bowl. In August 2024, he reached the final of the USTA Boys' 18 National Championships, but lost to compatriot Matthew Forbes.
In January 2025, Kennedy reached the boys' singles quarterfinals of the Australian Open. That May, he won the J300 event in Santa Croce sull'Arno and reached the semifinals of the J500 Trofeo Bonfiglio. At the French Open, he and Keaton Hance reached the boys' doubles semifinals. The pair later went on to win the boys' doubles title at the US Open after defeating Jack Secord and Yannick Alvarez in the semifinals and Benjamin Willwerth and Noah Johnston in the final.
He reached an ITF junior combined ranking of world No. 3 on 5 January 2026.
Kennedy will begin playing collegiate tennis for the Virginia Cavaliers in the fall of 2026.
In August 2024, he received a wildcard into the qualifying competition of the US Open, but lost in the first round to Maximilian Marterer.
Current through the 2025 US Open.