Objective: Bambara groundnut Vigna subterranea (L. Verdcourt) is cultivated for its high nutritional value. However, improving the marketability of this crop in local markets is desirable. In the present research, we described the diversity and characteristics of the phenotypes of Bambara groundnut from five Agro-Ecological Zones (AEZs) of Benin. Methodology and Results: A total of 514 farmers were surveyed, and 188 samples of Bambara groundnut were collected from them, reproduced at research station and analyzed in laboratory