thumb|Old County office
was a district located in Shimane Prefecture, Japan.
As of 2003, the district had an estimated population of 8,682 and a density of 83.93 persons per km<sup>2</sup>. The total area was 103.44 km<sup>2</sup>.
Former towns and villages
- Nima
- Yunotsu
Merger
- On October 1, 2005 - the towns of Nima and Yunotsu was merged into the expanded city of Ōda. Nima District was dissolved as a result of this merger.