Tiger Airways Australia Pty Ltd, operating as Tigerair Australia, is an Australian low-cost airline. It commenced services in the Australian domestic airline market on 23 November 2007 as Tiger Airways Australia. It is a fully owned subsidiary of Virgin Australia Holdings. The airline is based in Melbourne, Victoria, with its main base at Melbourne Airport. The Civil Aviation Safety Authority of Australia (CASA) grounded the airline in 2011; as a result operating bases at Adelaide and Avalon were shut down and it initially only operated out of its Melbourne base after returning to the air. On 7 March 2012, Tigerair announced the reopening of a second base at Sydney Airport.

On 4 September 2012 Tigerair announced it was resuming flights from Melbourne to Adelaide, beginning from 1 November 2012. On 18 December 2012 Tigerair Australia began direct return flights from Mackay to Melbourne and Mackay to Sydney. On 22 October 2012 CASA announced it was issuing a new safety certificate and lifting all restrictions placed on Tigerair Australia, as it was now satisfied the restrictions were no longer needed.

On 17 October 2014, Virgin Australia Holdings announced it would purchase the remaining 40% stake in the airline for A$1, taking full ownership.

Australian government policy and legislation currently permits airlines that are 100% foreign-owned to operate domestic airline services within the country. The change in regulations originally applied only to New Zealand-owned airlines in 1996, but were later relaxed, resulting in the establishment of Virgin Australia. Australian international airlines are still subject to ownership rules that limit foreign ownership to 49%.

The Australian Foreign Investment Review Board gave approval for Tiger Airways to establish its wholly owned Australian subsidiary in March 2007 without any special conditions. On 16 March 2007 Tiger Airways Australia Pty. Ltd. was incorporated in the Northern Territory, although the company is based in Melbourne, with Melbourne Airport being the airline's major hub.

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