The Australia Hotel was a hotel located in Castlereagh Street, Sydney in New South Wales, Australia. From its opening in 1891 until its closure on 30 June 1971 and subsequent demolition, the hotel was considered "the best-known hotel in Australia", "the premier hotel in Sydney" and described itself as "The Hotel of the Commonwealth". The hotel was situated in one of Sydney's important thoroughfares in the heart of the city.