Biase is a Local Government Area (LGA) in Cross River state, Nigeria. It has its capital/headquarters in Akpet Central. There are ten wards in the Local Government Area, namely: Umon South, Abayong, Akpet/Abini, Biakpan, Erei North, Erei South, Ikun/Etono, Agwagwune/Okurike, Umon North and Adim. The Efik language is the main language of Biase people but several variations of the Efik language, such as Ubaghara and Ukwa, are also spoken in Biase.
Another major language spoken in Biase is the Erei language which is the original language of the Erei and Biase people, which comprises ten groups of communities or towns, namely, Abanwan, Afono, Edu/Elu, Egbor, Etana, Ibini, Ipene, Obum, Umuolor and Urugbam, which is the capital, and Abayong people on the other side of the river. Erei is also spoken by the Etono people in Ugbahara and partially spoken by the Abini people. The Agwuagwune and Adim people also understand and speak Erei at a basic level.