Adaba (Oromo: Aadabbaa) is one of the Aanaas in the Oromia of Ethiopia; it shares the name of its administrative center, Adaba. Part of the West Arsi Zone, Adaba is bordered on the southwest by Nensebo, on the west by Dodola, on the northwest by the Shabelle River which separates it from the Gedeb Asasa, and on the east and south by Bale Zone.
Ulrich Braukämper theorizes that the name "Adaba" comes from a Hadiya subgroup mentioned in the Royal Chronicle of Zara Yaqob, where they are referred to as the "Hababo". Braukämper has argued that the Hadiya kingdom prior to the 16th century included in this area, presenting a number of facts supporting his argument, as opposed to other experts who argue that it extended to the east.[1]