The Clutha District is an administrative district of southern New Zealand, with its headquarters in the Otago town of Balclutha. Clutha District occupies the majority of the geographical area known as South Otago. It has a land area of 6,362.86 km²and a population of around 17,000 usual residents. Clutha District is under the local body administration of the Clutha District Council, based in Balclutha. It is administered at a regional level by the Otago Regional Council, based in Dunedin.

Clutha District was formerly composed of three separate counties (Clutha, Bruce, and Tuapeka), and two boroughs (Balclutha and Milton). These were amalgamated into one district authority in 1989 as part of a nationwide reorganisation of local government. The current mayor is Bryan Cadogan,

The most populous town in Clutha District is Balclutha. For a while in the 1980s Balclutha was New Zealand's most wealthy town, per capita.