The 2018 Rally Australia was a motor racing event for rally cars that took place between 15 and 18 November. The event was open to entries competing in World Rally Cars and cars complying with Group R regulations. It marked the twenty-seventh running of Rally Australia and was the final round of the 2018 FIA World Rally Championship and its support series, the WRC-2 and WRC-3 championships. The 2018 event was based in Coffs Harbour in New South Wales and consisted of twenty-four special stages. The rally covered a total competitive distance of a 316.30 km and an additional 698.91 km in transport stages.

Rally Australia is an automobile rally event which was held in Coffs Harbour as the final leg of the World Rally Championship (WRC) until 2018.