Qantas House is an Australian heritage-listed office building at 68-96 Hunter Street, Sydney. It was designed by Rudder, Littlemore & Rudder and built from 1955 to 1957 by Concrete Constructions Pty Ltd. It is also known as No. 1 Chifley Square. The site was added to the New South Wales State Heritage Register on 25 May 2001.