Greg Colbrunn, American baseball player and coach
Gregory Joseph Colbrunn (born July 26, 1969) is an American former Major League baseball player and hitting coach. Primarily a first baseman during his active career, the Fontana, California, native played in the Major Leagues for 13 seasons (1992–2004) and seven different teams. He threw and batted right-handed and was listed at 6 feet (1.8 m) tall and 190 pounds (86 kg). He served as the Boston Red Sox hitting coach during the 2013 and 2014 seasons.

Colbrunn graduated from Fontana High School and was selected by the Montreal Expos in the sixth round of the 1987 Major League Baseball draft, turning down a scholarship from Stanford University to begin his professional baseball career. Despite missing the entire 1991 season with an injury, he rose through the Montreal farm system and made his MLB debut with the Expos on July 9, 1992, and singled in his first at bat off Francisco Oliveras of the San Francisco Giants.