阿德墨托斯（古希腊语：Ἄδμητος，Admetos）是斐瑞斯子，克瑞透斯孙，埃俄罗斯曾孙。希腊神话中斐赖的国王，阿尔戈英雄之一，曾参加卡吕冬狩猎。为了追求伊奥尔科斯国王珀利阿斯最美丽的女儿阿尔刻提斯，接受其父亲的要求驾驭狮子和野猪拉的战车。阿波罗因为杀死独眼巨人而被罚作阿德墨托斯的奴隶，两人结为好友。阿波罗预见阿德墨托斯即将辞世，便说服了命运女神延长他的生命，但条件是要有人愿意替他去死。其妻子阿尔刻提斯自愿牺牲，替丈夫去死。后来赫拉克勒斯将其妻子救活。阿尔刻提斯死亡和复活的故事在后世许多浮雕和花瓶的主题。欧里庇得斯把这个故事写成一部古希腊悲剧阿尔刻提斯。

In Greek mythology, Admetus (/ædˈmiːtəs/; Greek: Ἄδμητος Admetos, "untamed", "untameable") was a king of Pherae in Thessaly, succeeding his father Pheres after whom the city was named. Admetus was one of the Argonauts and took part in the Calydonian Boar hunt. His wife Alcestis offered to substitute her own death for his.