The Weatherboard Inn archaeological site is a heritage-listed former grazing ground, military post, staging inn and road building depot and now public park located at 1-15 Matcham Avenue, Wentworth Falls, City of Blue Mountains, New South Wales, Australia. It was built from 1814 to 1827. It is also known as Weatherboard Inn Archaeological Site. The property is owned by the Blue Mountains City Council. It was added to the New South Wales State Heritage Register on 2 April 1999.