Mateo Sanz Lanz (born 6 November 1993) is a Spanish-born Swiss windsurfer. He competed for Switzerland at the 2016 Summer Olympics, placing 14th in the , and at the 2020 Summer Olympics, placing 8th in the . Sanz Lanz placed 2nd in the men's event at the . He was born in Formentera del Segura and resides in San Francisco Javier, Formentera, Balearic Islands.