Aflatoxin caused by Aspergillus flavus is a major field-to-storage contaminant in groundnut seed production, whereas defoliation diseases in groundnuts caused by Passalora arachidicola and Nothopassalora personata are two of the most yield-limiting biotic stresses. The present study was to identify groundnut genotypes with resistance to leaf spot disease and preharvest aflatoxin contamination.