João Fonseca

João Fonseca (born 21 August 2006) is a tennis player from Brazil. Fonseca has a career-high singles ranking of No. 636, and a career-high doubles ranking of No. 531.

Finals

 * Singles
 * 🇺🇸 US Open, New York City (4 Sep 2023) – 🇧🇷 João Fonseca def. 🇺🇸 Learner Tien, 4–6, 6–4, 6–3.


 * Doubles
 * 🇦🇺 Australian Open, Melbourne (23 Jan 2023) – 🇺🇸 Learner Tien / 🇺🇸 Cooper Williams def. 🇧🇪 Alexander Blockx / 🇧🇷 João Fonseca, 6–4, 6–4.