Oreina bifrons is a species of broad-shouldered leaf beetles belonging to the family Chrysomelidae, subfamily Chrysomelinae.
Subspecies include:
Oreina bifrons can reach a length of . These beetles are characterised by colour polymorphism.
This species can be found in Europe, in the Alps, Sudetes, Carpathians and Balkans.
These beetles are viviparous. Larvae mainly feed on Chaerophyllum hirsutum.