Duilio Vallebuona Reyes (born 6 July 1992) is a Peruvian model, television personality and professional tennis player.
Vallebuona, winner of three ITF Futures doubles titles in 2014, made his Davis Cup debut for Peru in a 2015 tie against Chile in Santiago and was beaten in his singles rubber by Nicolás Jarry. He also featured in a 2016 tie versus Uruguay in Lima, which the Peruvians won.
Off the court, Vallebuona is a model and has appeared on Peruvian television as a reality contestant on Combate, a show featuring various physical and mental tests. He was Mister International Peru for 2018 and travelled to the Philippines to compete in the Mister International pageant. In 2024 it was announced that he would be on a new Willax program called Agricooltores, a program dedicated to agriculture and animal husbandry.