Nolan Alexander Carroll II (born January 18, 1987) is an American former professional football cornerback.

His father, Nolan Carroll, was a Senior Master Sergeant in the United States Air Force.

[2] He attended Clay High School in Green Cove Springs, where he was a one-year letterman in soccer and a three-year starting wide receiver for the football team.

[2] Carroll received athletic scholarship offers from Central Florida, Colorado, Louisville, Maryland, and Mississippi.

[2] Carroll sat out the 2005 season on redshirt status, and was named the scout team player of the week for his performance in the practices in preparation for the Florida State game.

[5] Defensive coordinator Don Brown said of Carroll, "If you were going to clone a guy at that position that he plays, he'd be one of the prototypes.

[11] Carroll was part of an improved Miami special teams unit two weeks later against the Green Bay Packers, a game in which he averaged 26.0 yards per kickoff return.

[12] On December 13, 2010, New York Jets strength and conditioning coach Sal Alosi extended his knee to trip Carroll as he was running out of bounds to avoid being blocked during a punt (it is illegal to block or tackle players out of bounds, non-players like Alosi are not permitted to be on the field during live play.

On September 20, during the home opener loss against the Dallas Cowboys, Carroll tackled a fan who ran on the field.

On March 10, 2017, Carroll signed a three-year, $10 million contract with the Dallas Cowboys, to help replace cornerbacks Brandon Carr and Morris Claiborne who left in free agency.