The City of Auburn was a local government area in the Greater Western Sydney region of New South Wales, Australia. The area that was under administration prior to its 2016 merger is located about west of the Sydney central business district. The area's population is culturally diverse.Major attractions and features in the area include the Gallipoli Mosque, located in the suburb of Auburn. The Mosque is modelled upon the great mosques of Istanbul. The suburb of Sydney Olympic Park, the location of the main venues of the 2000 Summer Olympics, now attracts many visitors to its sporting and cultural events.A 2015 review of local government boundaries by the NSW Government Independent Pricing and Regulatory Tribunal recommended that the City of Auburn merge with adjoining councils. The government considered two proposals. The first proposed a merger of parts of Auburn, Holroyd and Parramatta to form a new council with an area of and support a population of approximately 219,000. The second proposed a merger of parts of Parramatta, Auburn, The Hills, Hornsby, and Holroyd to form a new council with an area of and support a population of approximately 215,725.