Sydney University Regiment (SUR) is an officer-training regiment of the Australian Army Reserve. Its predecessor, the University Volunteer Rifle Corps, was raised in 1900 as a unit of the colonial New South Wales Defence Force. During the 20th century, several changes of name and role occurred. Sydney University Regiment is headquartered in Holsworthy Barracks and has detachments in Sydney, Canberra and Wollongong.