Pyrrhias () or Pyrrias (Πυρρίας) may refer to:
Ancient Greece Pyrrhias of Aetolia, general, late 3rd century BC. Pyrrhias, Aetolian winner in stadion race, Ancient Olympic Games (200 BC) Pyrrhias, a slave character in the comedy Dyskolos by Menander Pyrrhias, a ferryman of Ithaca in Plutarch's Moralia
Zoology Benthonellania pyrrhias of Rissoidae (Gastropoda) Nystiella pyrrhias of Epitoniidae (Wentletrap) Iophanus pyrrhias of Iophanus, Lycaenidae (butterfly) Augochlora pyrrhias of Halictidae (Hymenoptera)