Khadein (カダイン Khadein) is a country on the continent of Akaneia in the games Fire Emblem: Ankoku Ryū to Hikari no Tsurugi and Fire Emblem: Shadow Dragon. Located in a desert north of Altea, Khadein was founded by the White Sage Gotoh and is renowned for its skillful magic wielders. Khadein is also home to a school of magic where Merric attends before and after the events of Ankoku Ryū to Hikari no Tsurugi, and Shadow Dragon. Gharnef eventually conquers this kingdom and proclaims himself emperor.
Khadein would eventually become part of Regna Ferox, along with Aurelis.