The Black-bellied Firefinch (Lagonosticta rara) is a common species of estrildid finch found in Africa. It has an estimated global extent of occurrence of 2,300,000 km².

It is found in Benin, Burkina Faso, Cameroon, Central African Republic, Chad, The Democratic Republic of the Congo, Côte d'Ivoire, Ghana, Guinea, Kenya, Liberia, Nigeria, Senegal, Sierra Leone, Sudan, Togo and Uganda. The status of the species is evaluated as Least Concern.