Dillon Gymnasium is an on-campus multi-purpose athletic facility on the campus of Princeton University in Princeton, New Jersey. It was built in 1947 to replace University Gymnasium, which had burned to the ground in 1944. It houses a 1,500-seat gymnasium, squash courts and a pool. From 1947 to 1969 it housed the men's basketball team before the building of Jadwin Gymnasium. It currently houses the men's and women's volleyball teams and the wrestling team. It is named for Herbert L. Dillon, class of 1907, a one-time football captain and a principal donor to the building which bears his name.