Oreina bifrons is a species of broad-shouldered leaf beetles belonging to the family Chrysomelidae, subfamily Chrysomelinae.

Subspecies include:[1] Oreina bifrons can reach a length of 9–10 millimetres (0.35–0.39 in).

These beetles are characterised by colour polymorphism.

[2] This species can be found in Europe, in the Alps, Sudetes, Carpathians and Balkans.

Larvae mainly feed on Chaerophyllum hirsutum.