The Riddoch Art Gallery is the largest regional gallery in South Australia. It was first opened in the Mount Gambier Institute in 1887 with funding from pastoralist, parliamentarian and cultural benefactor John Riddoch.
In 2011, a redevelopment of the Gallery was undertaken as part of the Main Corner project, providing state of the art energy-efficient climate control, improved artwork storage facilities, a new studio/workshop space and resource room, and an impressive architecturally designed public entrance.
On 30 June 2016, the Board of the Riddoch Art Gallery Incorporated handed over operations to the City of Mount Gambier. This historic agreement represented a new opportunity for the Riddoch Art Gallery and the art and culture of the Limestone Coast region of South Australia to be showcased, including to national and potentially international audiences.
The Gallery employs professional staff, maintains international art museum standard conditions and is the only state government funded regional gallery. It provides gallery space for local artists and community groups, and provides both state and national touring exhibitions.
The Riddoch’s collection of over 1500 items includes important paintings and prints that depict the people and history of the Limestone Coast, a significant collection of Aboriginal art from Utopia and a large collection of 20th Century Australian art.
Riddoch Art Gallery is funded with assistance from the City of Mount Gambier and the District Council of Grant.