Barry William Zito (born May 13, 1978 in Las Vegas, Nevada) is a left handed starting pitcher for the San Francisco Giants of Major League Baseball. He previously played seven seasons with the Oakland Athletics where he won the 2002 American League Cy Young Award and made three All-Star game rosters. Zito never missed a scheduled start in his career until 2008, and led the American League in starts four times. After the 2006 season, Zito signed the most expensive contract in history for a pitcher at the time. In Zito's first season with the Giants, he set a career high in earned run average and he recorded his lowest number of strikeouts and winning percentage in any full major league season in his career.
His "12–6" curveball has been voted the best curveball in baseball. Zito played collegiately at UC Santa Barbara, Los Angeles Pierce College, and the University of Southern California. In the 1999 draft, he was drafted by the Oakland Athletics with the ninth pick of the first round. Zito is known for his idiosyncrasies, and his offbeat personality. He created the charity Strikeouts for Troops which provides money to hospitals for soldiers wounded in military operations.
He is the nephew of actor, Patrick Duffy.