Ahaura is a town in the West Coast region of New Zealand's South Island, sited where the Ahaura River flows into the Grey River. State Highway 7 and the Stillwater - Westport railway line pass through the town. Greymouth is 34 km to the south-west, and Reefton is 44 km to the north-east.
The population of the Ahaura statistical district, which covers a much larger area than the town, was 390 in the 2006 Census, a decrease of 21 from 2001.
European settlement of the area began with the establishment of a pastoral run near the junction of the Ahaura and Grey Rivers in 1858.
At one time the town supported six hotels, two butcheries, a bakery, a blacksmith's shop, and a printing office.
Awahono School - Grey Valley is a coeducational full primary (years 1-8) school with a decile rating of 4 and a roll of 119. The school was formed at the beginning of 2005 from the merger of Ahaura, Moonlight, Ngahere and Totara Flat schools.