Au Bon Pain is an American fast-casual bakery and café chain headquartered in Boston, Massachusetts. In 1977, Louis Rapuano founded Au Bon Pain in Boston's Faneuil Hall. Since its inception, the chain has expanded throughout the United States. Additionally, there are numerous franchise locations internationally in India and Thailand. On November 8, 2017, Panera Bread announced it would be acquiring Au Bon Pain, which had split off from Panera in 1999 after being created in 1981.