- Language: Koalib
- Alternate names: Abri, Kawalib, Kowalib, Lgalige, Ngirere, Nirere, Rere
- Language code: kib
- Language family: Heibanic, West-Central Heibanic, Central Heibanic
- Number of speakers: 44300
- Script: Latin script
Koalib is a Niger-Congo language spoken in the Sudan. The Koalib language is spoken by Koalib Nuba. It is an ethnic minority of Sudan and a subgroup of the people called "Nuba". They live in the Nuba Mountains in Kordofan.