Yass /ˈjæs/ is a town in the Southern Tablelands of New South Wales, Australia in Yass Valley Council. The name appears to have been derived from an Aboriginal word, "Yarrh" (or "Yharr"), said to mean 'running water'.
Yass is located 280 km south-west of Sydney, on the Hume Highway. The Yass River, which is a tributary of the Murrumbidgee River, flows past the town. Yass is 59 km from Canberra.
Yass has an impressive and historic main street, with well-preserved 19th century verandah post pubs (mostly converted to other uses). It is popular with tourists, some from Canberra and others taking a break from the Hume Highway.
The Yass Show is held in March, The Turning Wave Festival in September, and the Yass Arts-and-Crafts Festival in November, along with numerous other festivals and events throughout the year.