Oakey (, postcode 4401) is a rural town situated in the Darling Downs region of Queensland, Australia. It is situated 160 kilometres west of the state capital, Brisbane, and 29 kilometres west of the regional city of Toowoomba. Town population is approximately 4,000. Oakey is also the administrative centre of the Jondaryan Shire, which has a population of 13,229 persons (June 2002) and covers an area of 1906 square kilometres.
The town is bypassed by the Warrego Highway (National A2), and is also on the main rail link connecting Brisbane and Toowoomba with south-western Queensland. Industry is rural based, with emphasis on meat and cropping. A meatworks is located in the town. There are also mining operations in the surrounding districts. The main town centre was redeveloped during 2005 by the council and now includes new shops, landscaping and tree plantings.
The climate is varied, with hot dry conditions in Summer and cool conditions in Winter. Cold nights and frosts are frequent in the Winter months. Temperatures below -10 °C have been recorded.