Sullivan Athletic Center is a 3,000-seat multi-purpose arena in Chicago, in the U.S. state of Illinois. The arena opened in 2000, replacing Alumni Hall. It is home to the DePaul University Blue Demons women's basketball team. It was formerly named the DePaul Athletic Center. The DePaul Athletic Center was renamed the Sullivan Athletic Center in 2006. It houses both McGrath-Phillips Arena (women's basketball and volleyball) as well as the DePaul athletic department.