List of Boston Red Sox captains

The Boston Red Sox, a professional baseball franchise in Major League Baseball (MLB), has given the title of captain to select players since the team's inaugural season as a member of the American League in 1901 (the team was known as the Boston Americans through the 1907 season). For various seasons during the team's history, the position has been vacant; while in early baseball a captain was responsible for many of the functions now assumed by managers and coaches, the title is purely honorary in modern professional baseball.

Source: Wikipedia — List of Boston Red Sox captains (CC BY-SA 4.0)