Wedderburn is a suburb of Sydney, in the state of New South Wales, Australia. Wedderburn is located 57 kilometres south-west of the Sydney central business district in the local government area of the City of Campbelltown and is part of the Macarthur region. Wedderburn is the only Campbelltown suburb on the right bank of the Georges River. A steep gorge and heavy bush gives Wedderburn the atmosphere of a small country town rather than the suburban norm.