Gulgong is a 19th-century gold rush town in the Central Tablelands and the wider Central West regions of the Australian state of New South Wales. The town is located about north west of Sydney, and about 30 km north of Mudgee along the Castlereagh Highway. At the 2011 census, Gulgong had a population of 1,866. It is situated within the Mid-Western Regional Council local government area.
Today, much of the 19th century character of the town remains, contributing to its appeal as a tourist destination. Of special interest is the Prince of Wales Opera House, a survivor with a rich history.
An attraction of note is the Gulgong Pioneer Museum, which has a huge collection of thematically-displayed exhibits, ranging from kitchen utensils to complete buildings that have been relocated to a 'street' on the site. Apart from tourism and hospitality, local industries include wine production, wool, wheat growing and coal mining.
Yarrobil National Park is located north west of Gulgong.