Darwin Blanch (born September 2007) is a rising American professional tennis player who achieved a career-high ATP singles ranking of world No. 211 in June 2026. He made a name for himself in junior tennis by reaching the semifinals at both the 2023 French Open and Wimbledon, and he gained early attention as a hitting partner for Carlos Alcaraz, who was injured during a practice session and missed the 2023 Australian Open. Turning professional, he received wildcard entries into the 2024 Miami and Madrid Opens, where he faced Rafael Nadal in the latter tournament. His breakthrough year came in 2025 when he won the USTA 18s Championships to earn a US Open wildcard and secured his first ATP Tour win by defeating Borna Ćorić at the Winston-Salem Open. Continuing his momentum, he reached the semifinals at the 2026 Sarasota Open, solidifying his status as one of America's most promising young talents.