Hadena sancta is a species of moth of the family Noctuidae.

It is found in Spain, Corsica, Sardinia, Malta, North Africa, Israel, Lebanon, Syria, Jordan, Cyprus, Turkey, Saudi Arabia and Yemen.

Warren states darker and greyer [ than Hadena perplexa as E. nisus Germ.

Like irregularis, buffgrey brown without the paleochreous tinge; submarginal line dentate and preceded by long dentate black marks; claviform stigma definite but small and brown; hindwing fuscous.

The type form is from Sicily only] with the stigmata filled in with brown, occurs in Spain.