Crop diversification is increasingly recognized as a cornerstone of global strategies for sustainable agriculture, climate resilience, and nutritional security. In Sub-Saharan Africa (SSA), underutilized indigenous crops such as sorghum, millet, Bambara groundnut, fonio, and amaranth offer a unique combination of agronomic adaptability, nutrient density, and cultural relevance. These species have evolved under local agroecological pressures, conferring tolerance to drought, heat, and marginal soils while contributing to dietary diversity and rural income generation. Despite their potential, indigenous crops remain marginalized in research, policy, and markets.