Hadiyya (speakers call it Hadiyyisa, others sometimes call it Hadiyigna, Adiya, Adea, Adiye, Hadia, Hadiya, Hadya) is the language of the Hadiya people of Ethiopia. Over 1.2 million people speak Hadiyya, making it one of the ten major languages in Ethiopia. It is a Highland East Cushitic language of the Afroasiatic family. Most speakers live in the Hadiya Zone of the Southern Nations, Nationalities, and People's Region (SNNPR). The language has four recognized dialects—Leemo, Badawacho, Shashogo, and Sooro. These are mutually intelligible, with slight regional variations.
The closely related Libido language, located just to the north in the Mareko district of Gurage Zone, is very similar lexically, but has significant morphological differences. Historically oral, Hadiyya is now written using a Latin-based orthography, developed for educational and administrative use. Hadiyya has a set of complex consonant phonemes consisting of a glottal stop and a sonorant: /ʔr/, /ʔj/, /ʔw/, /ʔl/.