John Bryan "Jack" Swarbrick, Jr. is the athletic director at the University of Notre Dame. His appointment was announced in July 2008, replacing Kevin White, who resigned in June 2008 to take the same position at Duke University.

Swarbrick was born 19 March 1954 in Yonkers, New York, the son of John Brian and Mary Catharine (née Comey) Swarbrick. He earned an undergraduate degree (magna cum laude) in economics from Notre Dame in 1976 and a law degree from Stanford in 1980. He practiced law for 28 years and was a partner in the law firm of Baker & Daniels immediately prior to accepting his position at Notre Dame. From 1992 until 2001, he also served as chairman of the Indiana Sports Corp., during which time he helped convince the NCAA to relocate its headquarters to Indianapolis.

Swarbrick was previously considered for athletic director positions at Indiana University and Stanford University. In 2007, he was considered for the position of commissioner of the Big 12 Conference, and in 2002 he was a finalist for the position of NCAA president, which went to Myles Brand.