Family name Diaye (Diaye 
, دياي) , around the globe, is quite a rare last name. The last name Diaye is characteristic of Sub-Saharan Africa, particularly Senegal, where it is quite a rare surname, Mauritania, and Mali. Measured by absolute frequency, it is the most numerous in Sub-Saharan Africa, particularly Senegal, Mali, and Ivory Coast. Likewise, Diaye is the forename as well as the last name.