Pelayo Sánchez Mayo (born 27 March 2000) is a Spanish cyclist, who currently rides for UCI WorldTeam Movistar Team.

He turned professional in 2021 with Burgos BH, where he was named to their squad for the 2021 Vuelta a España. In 2024, he joined Movistar Team on a two-year contract, winning his first race with the team at the Trofeo Pollença–Port d'Andratx in late January. In May, he won stage six of the Giro d'Italia from a three-rider breakaway.