Keith Aucoin was raised in Waltham and then Chelmsford, Massachusetts. He spent four seasons with Norwich University in Northfield, Vermont, before turning professional in 2001. He enjoyed two successful stints with the Providence Bruins and made his NHL debut during the 2005–06 NHL season with the Carolina Hurricanes.
Aucoin was the AHL's leading scorer and was voted Most Valuable Player during the 2009-10 season as he led the Hershey Bears to the Calder Cup championship. In 2022 he was inducted into the AHL Hall of Fame.