was a district located in Mie Prefecture, Japan.
As of 2003, the district had an estimated population of 70,059 and a density of . The total area was .
Towns and villages
- Ago
- Daiō
- Hamajima
- Isobe
- Shima
Mergers
- On October 1, 2004 - The former town of Shima absorbed the towns of Ago, Daiō, Hamajima and Isobe to create the city of Shima, effectively turning the district into a city. Therefore, Shima District was dissolved as a result of this merger.