Paulo Zanetti (born September 24, 1952) is a former international freestyle swimmer from Brazil, who competed at one Summer Olympics for his native country.He was at the 1971 Pan American Games, in Cali, where he won a bronze medal in the 4×100-metre freestyle, breaking the South American record.At the 1972 Summer Olympics, in Munich, he finished 4th in the 4×100-metre freestyle (6 seconds and a half below the South American record).
He also swam the 100-metre freestyle and the 4×200-metre freestyle, not reaching the finals.He was at the 1975 World Aquatics Championships in Cali.
In the 4×200-metre freestyle, he finished 12th, with a time of 8:07.41, along with Paul Jouanneau, Eduardo Alijó Neto and Paulo Mangini.He was at the 1975 Pan American Games, in Mexico City, where he finished 6th in the 100-metre freestyle.