Pete Mackanin, American baseball player, coach, and manager
Peter Mackanin, Jr. (pronounced ; born August 1, 1951), is an American former professional baseball utility player, coach, scout, and manager, who played in Major League Baseball (MLB) for the Texas Rangers, Montreal Expos, Philadelphia Phillies, and Minnesota Twins, from 1973 to 1981.

Mackanin briefly managed the Pittsburgh Pirates, in 2005. Following the firing of Cincinnati Reds manager Jerry Narron, in 2007, Mackanin (who was the team’s advance scout, at the time) became the acting Reds’ manager, for the duration of that campaign; the Reds then decided to replace Mackanin with Dusty Baker.

Mackanin was the Phillies' bench coach, from 2009 to 2012. After spending the 2013 season as a scout for the New York Yankees, he served as Philadelphia’s third base coach in 2014 and 2015, then became interim manager, following Ryne Sandberg’s resignation. The Phillies later announced that they were removing the "interim" label and Mackanin would serve as the team's manager in 2016. On September 29, 2017, the team announced that Mackanin would not return as the Phillies’ field manager, for the 2018 season.