Glengallan Homestead, Heritage mansion in Southern Downs Region, Queensland, Australia.

Glengallan Homestead is a two-story sandstone building set across the Darling Downs landscape, fitted with French doors, high ceilings, and wide verandas. The structure was constructed using stone quarried directly on the property, which connects its appearance to the local terrain.

The property was built between 1867 and 1868 for John Deuchar and became a center for merino sheep and shorthorn cattle breeding. These livestock operations were central to the region's economic development during the late 1800s.

The house shows how wealthy landowners lived during the colonial period, with original furnishings and personal objects still visible throughout the rooms. The way it was built and decorated reflects the importance these settlers placed on comfort and social standing.

The grounds are accessible daily, allowing visitors to explore the rooms and view the property from different angles. A refreshment area on-site serves drinks and regional food, making it easy to spend half a day or more there.

Glengallan stands on the southwestern slope of Mount Marshall, at the mouth of the valley running west from Cunningham's Gap, about 15 km north of Warwick near the junction of the Cunningham and New England Highways. Explorer Allan Cunningham named this valley the Darling Downs in 1827 after Governor Sir Ralph Darling.