The Lower Cross River languages form a branch of the Cross River languages of Cross River State, Nigeria. They consist of the divergent Obolo language or Andoni, (200,000 speakers), and the core of the branch, which includes the 4 million speakers of the Efik-Ibibio cluster.
Additionally, Ethnologue lists several more languages within the Efik-Ibibio cluster. (See Ibibio-Efik languages.)
Forde and Jones (1950) considered Ibino and Oro to be Efik-Ibibio.
Below is a list of language names, populations, and locations from Blench (2019).
Proto-Lower Cross River has been reconstructed by Connell (n.d.)