The Illubabor zone is one of the 12 zones of the Oromia region in the Federal Democratic Republic of Ethiopia .
The Illubabor Zone was formerly the historic Illubabor Province .
The zone consists of 12 districts, the so-called woredas :
Arsi | Bale | Buno Bedele | Borena | Guji | Horo Guduru Welega | Illubabor | Jimma | Kelam Welega | North Shewa | East Hararghe | East Shewa | East Welega | Southwest Shewa | West Arsi | West Guji | West Hararghe | West Shewa | West Welega | Adama Special Zone | Jimma Special Zone | Oromia special zone around Finfinne