Nicholas John Carlo Pivetta (born February 14, 1993) is a Canadian professional baseball pitcher who is a free agent.

He missed pitching his senior year in high school due to an ulnar collateral ligament injury in his right elbow.

[7] The Washington Nationals selected Pivetta in the fourth round of the 2013 MLB draft out of New Mexico Junior College.

[5] Pivetta was promoted to the 25-man roster on April 30, making his MLB debut the same day against the Los Angeles Dodgers.

[11] In 2018, Pivetta was 7–14 with a 4.77 ERA, 5th in the National League with 10.32 strikeouts-per-9-innings-pitched (the 2nd-highest rate of any Phillie pitcher in franchise history, behind Curt Schilling's 11.29 in 1997), 8th in the NL in strikeouts (188) and wild pitches (11), 9th in the NL in games started (32) and strikeouts/walk (3.69), and led the major leagues in allowing opposing batters the highest batting average on balls in play (.326).

[18] On August 21, 2020, Pivetta was traded to the Boston Red Sox, along with Connor Seabold, in exchange for Brandon Workman, Heath Hembree and cash.

[22] Pivetta was added to Boston's active roster on September 22,[23] making a start that day against the Baltimore Orioles.

In his first seven starts, he compiled a 5–0 record, before being placed on the COVID-related injured list for one day, May 12, due to vaccine side effects.

[29] Overall during the regular season, Pivetta made 31 appearances (30 starts) for Boston, compiling a 9–8 record with 4.53 ERA—he earned a save in his lone relief appearance—while striking out 175 batters in 155 innings.

[18] Pivetta returned to the Red Sox rotation in 2022; making 33 starts he compiled a 10–12 record with a 4.56 ERA while striking out 175 batters in 179+2⁄3 innings.

[18] On January 13, 2023, the Red Sox and Pivetta reached agreement on a one-year contract, avoiding salary arbitration.

[35] On May 30, Pivetta tied a Red Sox franchise record, previously set by Roger Clemens, by striking out eight consecutive batters.