Lia-Ntomba language

Ntomba and Lia (Bolia) are closely related Bantu languages of the Democratic Republic of the Congo, close enough to be considered dialects of a single Lia-Ntomba language.

Ntomba
Bolia, Lia
Native to	Democratic Republic of the Congo
Region	Lake Tumba, Lake Mai-Ndombe
Native speakers	(100,000 Ntomba cited 1980)[1] 100,000 Lia (2000)
Language family	Niger–Congo? Atlantic–Congo Benue–Congo Bantoid Bantu (Zone C) Bangi–Ntomba (C.30) Mongo Ntomba
Language codes
ISO 639-3	Either: nto – Ntomba bli – Bolia
Glottolog	boli1263
Guthrie code	C.35[2]

The related Mongo language also has varieties called Ntomba or Ntumba.