Commonwealth Electoral Division of: O'Connor (Western Australia)
- Division name: O'Connor
- State: Western Australia
- Name derivation: Named after Charles O'Connor 1843-1902, Engineer in Chief of Western Australia (appointed 1891). Designed Fremantle Harbour and the pipeline which supplies Kalgoorlie and other goldfields with water.
- Size & Location description: O'Connor covers an area of approximately 908 954 sq km from the Gibson Desert in the north to Albany in the south. The main locations include the City of Albany and the City of Kalgoorlie, and the regional centres of Bridgetown, Denmark, Esperance, Kojonup, Laverton, Leonora, Manjimup, Mount Barker, Ravensthorpe, Southern Cross, Wagin and Warburton.
- Products/industries of the area: Grain, sheep, cattle, tree farming, fishing and aquaculture, vineyards and winemaking, gold, talc and mineral sands mining, farmstays and tourism.
- First proclaimed/election: 1979/1980