Platycorynus dejeani is a species of leaf beetle. It was first described by the Italian entomologist Giuseppe Bertoloni from Inhambane, Mozambique in 1849. It occurs widely in sub-Saharan Africa.
In East Africa, the species' range extends from Ethiopia down to the former Cape Province in South Africa. The species also occurs in Senegal,[1] the Central African Republic and the Democratic Republic of the Congo.[2]