Doma (童どう磨ま, Dōma?) is a major supporting antagonist of Demon Slayer: Kimetsu no Yaiba. He is a demon affiliated with the Twelve Kizuki, holding the second highest position, Upper Rank Two (上じょう弦げんの弐に, Jōgen no Ni?).[3]

Over a century ago, Doma held the position of Upper Rank Six (上じょう弦げんの陸ろく, Jōgen no Roku?),[4] and during that tenure, he turned Gyutaro and Daki into demons and introduced them into the Twelve Kizuki.[5][6]