The Bua languages are a subgroup of the Adamawa languages spoken in south-central Chad. They are ultimately part of the Niger-Congo family. They include:
- Bua language, north of the Chari River around Korbol and Gabil (after which the group was named); mutually comprehensible with Fanian (also called Mana or Kobe) around Karo and Chinguil
- Niellim or Lua, spoken around Niellim along the Chari River north of Sarh
- Tunia, around Sarh (including the Perim dialect)
- Noy or Loo, spoken between Sarh, Djoli, Koumra, and Koumogo. Nearly extinct.
- Gula languages, around Lake Iro and Zan.
- Koke, around Daguela
- Bolgo, near Melfi
They have exerted a significant influence on Laal.