2026 Brest Challenger – Singles

Common card · No. 457815

Hugo Gaston was the defending champion but retired from his second round match against Moïse Kouamé. Kouamé won the title after defeating Martin Damm 6–4, 6–7(5–7), 7–6(7–4) in the final. He became the youngest Frenchman to win a Challenger trophy since a 17-year-old Richard Gasquet in 2003.