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Nigbo is an extinct Plateau language of Nigeria. It was spoken near Agameti on the Fadan Karshi-Wamba road near Sanga LGA, Kaduna State. The language, listed in Blench (2012) and (2019), is not reported in Ethnologue or Glottolog. It is presumably an Alumic language based on its proximity to Akpondu, a language closely related to Alumu and Tesu.
The extinct languages Akpondu and Babur (Bəbər) were also spoken in nearby villages of Akpondu and Babur, respectively.
References
Blench, Roger (2019). An Atlas of Nigerian Languages (4th ed.). Cambridge: Kay Williamson Educational Foundation.