Aba Subregon was a subregion in Fejér County, Hungary. Its center was Aba. It was the only subregion where the center is not a town or a city.
| width=150 | Aba | width=150 | Csősz | width=150 | Káloz | width=150 | Sárkeresztúr | width=150 | Sárosd |
| Sárszentágota | Seregélyes | Soponya | Tác |