William John Kennedy (1919–2005), better known as Uncle Jack Kennedy, was a lifelong activist for the rights of Australian Aborigines, a Wotjobaluk clan elder of the people who spoke the Wergaia language in the Wimmera region of western Victoria, Australia.
Wotjobaluk, Jaadwa, Jadawadjali, Wergaia and Jupagulk Peoples v Victoria is a decision of the Federal Court of Australia delivered on 13 December 2005 by Justice Ron Merkel in respect of a native title claim determination for the Wimmera western region of Victoria.