Antonio Prieto (born 7 September 1973) is a former professional tennis player from Brazil.

While studying for a business degree he played varsity tennis as the No.

He won an ATP Tour doubles title with countryman Gustavo Kuerten at the 2000 Chevrolet Cup, in Santiago, Chile.

[2] From the 2000 French Open to the 2001 Australian Open, Prieto appeared in the men's doubles main draw of all four Grand Slam tournaments in succession.

He made the second round once, at the 2000 Wimbledon Championships with Israel's Eyal Ran.