The Volta–Niger family of languages, also known as West Benue–Congo or East Kwa, is one of the branches of the Niger–Congo language family, with perhaps 70 million speakers. Among these are the most important languages of southern Nigeria, Benin, Togo, and southeast Ghana: Yoruba, Igbo, Bini, and Gbe.

These languages have variously been placed within the Kwa or Benue–Congo families or, starting in the 1970s, combined with them altogether. Williamson & Blench (2000) separate the languages here called Volta-Niger from the others. Güldemann (2018) fails to see clear criteria for dividing the languages into two or three families and maintains the broad grouping and name of Benue-Kwa for all them.

The constituent groups of the Volta–Niger family, along with the most important languages in terms of number of speakers, are as follows (with number of languages for each branch in parentheses):^{[according to whom?]}

The Yoruboid languages and Akoko were once linked as the Defoid branch, but more recently they, Edoid, and Igboid have been suggested to be primary branches of an as-yet unnamed group, often abbreviated yeai. Similarly, Oko, Nupoid, and Idomoid are often grouped together under the acronym noi. Ukaan is an Atlantic–Congo language, but it is unclear if it belongs to the Volta–Niger family; Blench suspects it is closer to Benue–Congo.

In an automated computational analysis (ASJP 4) by Müller et al. (2013):^[1]

• Gbe and Yoruboid are subsumed within Kwa.
• Edoid and Cross River group together.
• Akpes and Ukaan group together.
• Oko is grouped within Idomoid.

Below is a list of major Volta–Niger branches and their primary locations (centres of diversity) in Nigeria based on Blench (2019).^[2]

Sample basic vocabulary in different Volta–Niger branches:

• Systematic graphic of the Niger–Congo languages with numbers of speakers