Tresco is a heritage-listed residence located at 97 Elizabeth Bay Road, Elizabeth Bay, City of Sydney, New South Wales, Australia. It was designed by Thomas Rowe and built by Rowe from 1867 to 1883. The property is privately owned. It was added to the New South Wales State Heritage Register on 2 April 1999. The property has previously functioned as a private residence, navy housing, and homestead and was originally indigenous lands. Before 2004 it was owned by the Royal Australian Navy and served as an official residence for the senior naval officers in New South Wales.