St Peter and Paul's Old Cathedral is a heritage-listed former Catholic cathedral and now parish church at 42 Verner Street, Goulburn, Goulburn Mulwaree Council, New South Wales, Australia. It was designed by Andrea Stombuco and Charles Spadacini and built from 1871 to 1890 by C. J. O'Brien and Wilkie Bros. It is also known as St. Peter and Paul's Former Cathedral and St Peter and Paul's Catholic Cathedral; Saints Peter and Paul's Catholic Cathedral. It was added to the New South Wales State Heritage Register on 20 April 2009.