Jérôme Cyrill Kym (born 12 February 2003) is a Swiss professional tennis player.

[2] In February 2019, partnering Henri Laaksonen, they defeated the Russian duo of Evgeny Donskoy and Andrey Rublev in his first doubles Davis Cup tie.

[3] Kym won his maiden Challenger title at the 2024 UniCredit Czech Open as a qualifier defeating Tseng Chun-hsin.

[4] Following his second Challenger title at the 2024 Zug Open he reached the top 200 at world No.

[5] At the 2024 Swiss Indoors in Basel, Kym qualified for his first ATP 500 main draw[6][7][8] but lost to fifth seed Ugo Humbert.