Denis Darbellay (; born 5 June 1998) is a professional footballer who plays as a winger for Thai League 2 club Kasetsart. Born in Switzerland, he plays for Thailand internationally.
Darbellay started his career with Swiss fifth tier side Monthey. Before the 2019 season, he signed for Police Tero in the Thai second tier, helping them earn promotion to the Thai top flight.
Darbellay is eligible to represent Thailand internationally through his mother.