The Weld Valley is a valley located in southern Tasmania. It is an area of aboriginal cultural heritage and natural history within the Tasmanian Wilderness World Heritage Area. The valley stretches north-west of Huonville and is approximately 50 km west of Hobart.

River

The Weld River, one of two rivers of the same name located in Tasmania, rises below Mount Mueller in the Tasmanian Wilderness, south west of Maydena and the Styx River and just south of the Gordon River Road, 4 km east of the southern shores of Lake Gordon. The Weld River flows from its source near Lake Gordon to its confluence with the Huon River on the Arve Plains. The river descends 811 m over its 53 km course.

Caves

The Weld Valley is home to a number of archaeological caves which contain evidence of human use dating back to at least 20,000 years ago. Bone Cave approximately is 29,000 years old.