Nicholas John Carlo Pivetta is a Canadian professional baseball pitcher for the San Diego Padres of Major League Baseball (MLB). He has previously played in MLB for the Philadelphia Phillies and Boston Red Sox. The Washington Nationals selected Pivetta in the fourth round of the 2013 MLB draft. He was traded to the Phillies during the 2015 season and made his MLB debut with them in 2017. The Phillies traded him to the Red Sox in 2020, and he signed a four-year contract with the Padres in 2025. He pitched for Canada in the 2017 World Baseball Classic.