Kevin Jermaine "Kay-Jay" Harris (born March 27, 1979) is an American former professional football running back.

He was drafted by the Texas Rangers for baseball and played four years of Class A ball before concentrating on football.

On September 4, 2004, he set a West Virginia and Big East Conference record for rushing yards in a single game.

Harris was signed to the practice squad of the New York Giants during the 2007 season, where he remained during the team's Super Bowl XLII victory over the New England Patriots.

However, Harris suffered an ankle injury during a preseason game against the Cleveland Browns on August 18 and was carted off the field.