is a district located in Kōchi Prefecture, Japan.
As of December 2014, the district has an estimated population of 17,538 and a density of 31.1 persons per km<sup>2</sup>. The total area is 563.33 km<sup>2</sup>.
Aki is known as the birthplace of Iwasaki Yatarō, the founder of the modern day Mitsubishi conglomerate.
Towns and villages
- Nahari
- Tano
- Tōyō
- Yasuda
- Geisei
- Kitagawa
- Umaji