is a district located in Kōchi Prefecture, Japan.
As of the Shimanto merger but with 2003 population statistics, the district has an estimated population of 22,402 and a density of 59.4 persons per km<sup>2</sup>. The total area is 376.77 km<sup>2</sup>.
Towns and villages
- Kuroshio
- Ōtsuki
- Mihara
Mergers
- On April 10, 2005 the old city of Nakamura, and the village of Nishitosa merged to form the new city of Shimanto.
- On March 20, 2006 the towns of Taishō and Towa merged with the town of Kubokawa, from Takaoka District, to form the new town of Shimanto, in Takaoka District.