The Corsican swallowtail (Papilio hospiton) is a species of butterfly in the family Papilionidae. It is found only in Corsica and Sardinia in the Mediterranean Sea. Papilio hospiton is similar to Papilio machaon, but the wings are more rounded, and the hindwing is provided with a short tooth instead of a tail. The black colour is more extended and more densely powdered with yellow than in P. machaon.