Diego Besio is a 20-year-old professional football player from SUI. He currently plays for St. Gallen, wearing the number 69 shirt. He plays primarily as a Forward. His current market value is estimated at 800K €.

His most recent move was a from FC St.Gallen U21 to St. Gallen on 2025-12-31.

In the Switzerland Super League 2025-2026 season, Diego Besio scored 2 goals and provided 0 assists across 12 appearances, averaging 0.2 goals per game with 9 shots attempted and 5 on target.