Finniss may refer to:
People B. T. Finniss (1807–1893), Premier of South Australia
Places Electoral district of Finniss, an electoral district in South Australia Finniss, South Australia, a small town Finniss Conservation Park, a protected area in South Australia Hundred of Finniss (Northern Territory), a cadastral unit Hundred of Finniss (South Australia), a cadastral unit
See also Finnis, a related surname Finniss River (disambiguation)