Jack Hillen (born January 24, 1986) is a professional ice hockey defenseman who currently plays for the New York Islanders.
Hillen has a Bachelor's degree in economics from Colorado College.
During his senior year at Colorado College, he won the Defenseman of the Year and first team all WCHA. After playing four seasons at Colorado College, he was signed by the New York Islanders to a 2-year contract. Jack made his National Hockey League debut with the Islanders in the last 2 games of the 2007–08 season against the Islanders' rival New York Rangers