Brian James Butterfield (born March 9, 1958) is an American professional baseball coach, and a former minor league player, manager and infield instructor.

[3] Butterfield's coaching career began during his professional playing days as a part-time assistant at Florida Southern (1979) and Eckerd College (1980–81).

After his playing career ended, he became a roving infield instructor in the Yankees' organization, then a coach at different levels of the Bombers' farm system.

Hired with two seasons to prepare for the team's debut, Showalter brought several Yankees' instructors with him to Phoenix, including Butterfield, to implement the Diamondbacks' player development program.

[4] Less than three weeks later, on June 3, 2002, Carlos Tosca, a coaching colleague of Butterfield's with the Diamondbacks, was appointed manager of the Toronto Blue Jays.

[6] When John Gibbons got the Blue Jays' job, Butterfield joined Farrell and the Red Sox on October 30, 2012, as third-base coach.

[10] He served through the Red Sox' 2013 World Series championship season, coaching third base, positioning the infielders defensively, working with young players Will Middlebrooks and Xander Bogaerts, and helping to convert Mike Napoli from catcher to first baseman.