Atlantic–Congo languages in the context of "Fon language"

Niger–Congo is a proposed family of languages spoken over the majority of sub-Saharan Africa. It unites the Mande languages, the Atlantic–Congo languages (which share a characteristic noun class system), and possibly several smaller groups of languages that are difficult to classify. If valid, Niger–Congo would be the world's largest language family in terms of member languages, the third-largest in terms of speakers, and Africa's largest in terms of geographical area. The number of named Niger–Congo languages listed by Ethnologue is 1,540.

The proposed family would be the third-largest in the world by number of native speakers, with around 600 million people as of 2025. Within Niger–Congo, the Bantu languages alone account for 350 million people (2015), or half the total Niger–Congo speaking population. The most widely spoken Niger–Congo languages by number of native speakers are Yoruba, Igbo, Fula, Lingala, Ewe, Fon, Ga-Dangme, Shona, Sesotho, Xhosa, Zulu, Akan, and Mooré. The most widely spoken by the total number of speakers is Swahili, which is used as a lingua franca in parts of eastern and southeastern Africa.

The Mande languages are a family of languages spoken in several countries in West Africa by the Mandé peoples. They include Maninka (Malinke), Mandinka, Soninke, Bambara, Kpelle, Jula (Dioula), Bozo, Mende, Susu, and Vai. There are around 60 to 75 languages spoken by around 60 million people, chiefly in Burkina Faso, Mali, Senegal, The Gambia, Guinea, Guinea-Bissau, Sierra Leone, Liberia, Ivory Coast (Côte d'Ivoire) and also in southern Mauritania, northern Ghana, northwestern Nigeria and northern Benin.

The Mande languages show a few lexical similarities with the Atlantic–Congo language family, so together they have been proposed as parts of a larger Niger–Congo language family since the 1950s. However, the Mande languages lack the noun-class morphology that is the primary identifying feature of the Atlantic–Congo languages. Accordingly, linguists increasingly treat Mande and Atlantic–Congo as independent language families.

The Senegambian languages, traditionally known as the Northern West Atlantic, sometimes confusingly referred to in literature as the Atlantic languages, are a branch of Atlantic–Congo languages most commonly spoken in Senegal and neighboring southern Mauritania, The Gambia, Guinea-Bissau, and Guinea. The nomadic Fula people have also spread their languages from Senegal across the western and central Sahel. The most populous unitary language is Wolof, the national language of Senegal, with four million native speakers and millions more second-language users. There are perhaps 13 million speakers of the various varieties of Fula, and over a million speakers of Serer . The most prominent feature of the Senegambian languages is that they are devoid of tone, unlike the vast majority of Atlantic-Congo languages.

Volta–Congo is a major branch of the Atlantic–Congo family. It includes all Atlantic–Congo except the families of the erstwhile Atlantic and Kordofanian branches and possibly Senufo.

In the infobox at the right, the languages which appear to be the most divergent (including the dubious Senufo) are placed at the top, whereas those closer to the core (the similar "Benue–Kwa" branches of Kwa, Volta–Niger and Benue–Congo) are near the bottom. If the Kwa or Savannas branches prove to be invalid, the tree will be even more crowded.