Eumenes mediterraneus is a species of potter wasp in the subfamily Eumeninae of the family Vespidae.
This species is found in most European countries, in the Near East and in North Africa.
Eumenes mediterraneus can reach a length of about 15 millimeters. The body is black with yellow markings. Clypeus is mainly yellow and scutellum has two large spots. Tergite I has a broad apical yellow band. Tergite II has two large yellow bands laterally and a pale and translucent apical lamella. Tergites V and VI have a yellow apical band.
In males the antennae are curled at the tip. In females the segment between the compound eyes is yellow with black spots in the inferior part.