Lord Satanis is a fictional villain published by DC Comics who debuted in Action Comics #527 (January 1982), created by Marv Wolfman and Curt Swan.

Co-creator Marv Wolfman stated that Satanis was created based on Superman's vulnerability to magic.

Lord Satanis is a powerful sorcerer from a million years in the future where humanity have regressed to a medieval society. Satanis battles his wife, Syrene, for Merlin's runestone as his protector Ambra is his constant foe. The artifact will make one of them extremely powerful and allow them to rule Earth, but only through an invulnerable body which brings them to Superman.

Later, Satanis and Syrene split Superman in half and send one of the Supermen to the past. After one of the Supermen is killed, Satanis possesses his body and uses it to fight Syrene and Superman's other half. Superman defeats Satanis and returns Satanis and Syrene to their time.

His final appearance was that of Crisis on Infinite Earths.