| Language | Branch | Dialects | Alternate spellings | Own name for language | Endonym(s) | Other names (location-based) | Other names for language | Exonym(s) | Speakers | Location(s) | Notes |
|---|
| Ebughu | | | | Ebughu | Ebughu | Oron | | | more than 5,000 (1988) | Akwa Ibom State, Mbo and Oron LGAs | |
| Enwang | | | | Enwang | Enwang | Oron (incorrectly) | | | estimated 50,000 plus (1988) | Akwa Ibom State, Mbo LGA | |
| Iko | | | | Iko | | Obolo (incorrectly included within Obolo) | | | Three villages: 5,000+ (1988) | Akwa Ibom State, Eastern Obolo LGA[3] | |
| Ilue | | | Idua | Ilue | | | | | 5,000 (1988); diminishing | Akwa Ibom State, Oron LGA | |
| Ọkọbọ | | | | | | | | | 11,200 (1945 F&J); 50,000 | Akwa Ibom State, Okobo LGA | |
| Uda | | | | Uda | | | | | 10,000 plus (1988) | Akwa Ibom State, Mbo LGA | |
| Ukwa | | | | | | | | | | Cross River State, Akampka LGA | |
| Usaghade | | | Usakade(t) | Usaghade | | Isangele | | | estimate 10,000 (1990) although mostly in Cameroon | Cross River State, Odukpani LGA; mainly in Cameroon, Isangele sub–division | |
| Idere | | | | Idere | | | | | more than 5,000 (1988) | Akwa Ibom State, Itu LGA | no data |
| Efai | | | | Efai | | | Effiat (from Efik) | | >5,000 (1988 est.) | Akwa Ibom State, Mbo LGA; Cameroon, Isangele sub–division | |
| Ọrọ | | | Oron | Ọrọ (Oro) | Ọrọ (Oro) | | | | 319,000 (1963 per Kuperus) | Akwa Ibom State, Oron LGA | |
| Ito | | | | Ito | | | | | 5,000 plus (1988) | Akwa Ibom State, Akamkpa LGA | no data |
| Eki | | | | Eki | | | | | 5000 plus (1988) | Cross River State | no data |
| Etebi | Central | | | Etebi | | Oron (incorrectly); Ekit (incorrectly) | | | estimate 15,000 (1989) | Akwa Ibom State, Uquo Ibeno LGA | |
| Itu Mbon Uzo | Central | | Itu Mbuzo | Itu Mbon Uzo | | | | | 5,000 plus (1988) | Akwa Ibom State, Ikono LGA | |
| Anaang | Central | Abak, Ikot Ekpene, Ukanafun | Annang, Anang, Anaŋ | | | | | | 246,000 (F&J 1944-5): estimated 1,000,000 (1990) | Akwa Ibom State, Ikot Ekpene, Essien Udim, Abak, Ukanafun and Oruk–Anam LGAs | |
| Efik | Central | | | | | Calabar | | | 26,300 (1950 F&J),[4] 10,000 in Cameroon; 360,000 first language speakers; spoken as a second language by 1.3 million (UN 1960), 3.5 million (1986 UBS) diminishing | Cross River State, Calabar municipality, Odukpani and Akamkpa LGAs; and in Cameroon | |
| Ekit | Central | | Ekid, Eket | | | | | | 22,000 (1952 W&B); estimated 200,000 (1989) | Akwa Ibom State, Eket and Uquo Ibeno LGAs | |
| Ibibio | Central | Nkari, Enyong, Central, Itak, Nsit etc. roughly according to clans | Ibibyo | | | | | | 800,000 (1952) (may include Efik); 283,000 (1945 F&J); 2 million (1973 census); estimated 2.5 million (Ibibio proper 1990) | Akwa Ibom State, Ikono, Itu, Uyo, Etinan, Ekpe–Atai, Uruan, Nsit–Ubium, Onna, Mkpat Enin and Abasi LGAs | |
| Ibuoro | Central | | | Ibuoro | | | | | 5,000 plus (1988) | Akwa Ibom State, Itu and Ikono LGAs | |
| Obolo | West | From West to East: Ataba, Unyeada, Ngo, Okoroete, Ibot Obolo | | | Òbólò | Andoni | | | 22,400 (1944 F&J); 90,000 (1983 Aaron); 100,000 (Faraclas 1989) | Rivers State, Andoni LGA: western dialects; Akwa Ibom State, Eastern Obolo LGA: eastern dialects[5] | |
| Ibinọ | West | | Ibuno, Ibeno | | | | | | 10,000 (Faraclas (1989) | Akwa Ibom State, Ibeno LGA[6] | |