Jeri is a cover term for two Mande languages of northwestern Ivory Coast and southwestern Burkina Faso.
The Burkina language is Jalkunan (Blé, Dyala, Dyalanu, Jalanu), and the Ivory Coast language is Jeri Kuo (Celle, Jeli Kuo).
Jeri Kuo is spoken by people who traditionally constituted a caste-like minority within an otherwise mostly Senufo-speaking zone.
The Jalkunan-speaking people of the Blédougou village cluster are not people of caste, although nearby villages of other ethnicities have entire sections populated by blacksmith and leatherworker castes.
Jalkunan is being replaced by Jula (Dioula), but it is not immediately threatened by extinction.