Arctia dejeani is a species of moth in the family Erebidae first described by Jean Baptiste Godart in 1822.

It is found on the Iberian Peninsula.

The larvae feed on Taraxacum and Plantago species.

[2] This species, along with the others of the genus Hyphoraia, was moved to Arctia as a result of phylogenetic research published by Rönkä et al. in 2016.

This Arctiina-related article is a stub.