Joseph Tice Gellibrand (1792 – 1837) was the first Attorney-General of the British colony of Van Diemen's Land where he gained notoriety with his attempts to establish full rights of trial by jury. He became an integral part of the Port Phillip Association, producing the Batman Treaty in an attempt to obtain extensive land-holdings from the local Aboriginal people around Port Phillip. He was also later part of an ill-fated expedition into the region west of Geelong where he disappeared and was assumed to have been killed by Aboriginal people in the Otway Range.