The phrase "youngest captain" refers to a person who is the youngest among a group of people who have been given the role of leading or commanding a team or a group. Full definition
In Detroit all eyes are on Steve Yzerman, the high - scoring young captain of the Norris Division's outstanding team (si.com)
Chris Pine's a good fit for the role Best known as young Captain Kirk, Pine is 34 but his baby face makes him look younger, and he has a brashness that sets him off from previous actors in the role. (seanax.com)