The Subdivisions of the canton of Solothurn include:
| Amtei | Bezirk | |
|---|---|---|
| Dorneck-Thierstein | Dorneck District, Thierstein District | |
| Olten-Gösgen | Olten District, Gösgen District | |
| Solothurn-Lebern | Solothurn District, Lebern District | |
| Thal-Gäu | Thal District, Gäu District | |
| Wasseramt-Bucheggberg | Wasseramt District, Bucheggberg District |