伊格赖因（英语：Igraine，又译作伊格兰）是亚瑟王传说中的皇室人物，也是亚瑟王的母后，尤瑟王的妻子。她的名字来源自法语与威尔士语，初次登场于托马斯·马洛李所著作的文献《亚瑟之死》中。

实际上，他最初的丈夫是康沃尔公爵（Duke of Cornwall、实名为格洛斯(Gorlois)），并与其育有三个女儿，分别是伊莱恩、摩高斯以及摩根勒菲。

由于尤瑟王一直深爱着伊格赖因，而打算将她占为己有，于是在谋士梅林的帮助下，尤瑟装扮成康沃尔公爵的模样，与不知情的伊格赖因同床共枕。后来为除后患，便令伊格赖因的丈夫康沃尔公爵常年征战于沙场，自己好有机可趁。直到康沃尔公爵战死沙场后，便迎娶伊格赖因成为了自己的正妻，使她名正言顺的成为了卡美洛王国的王后，并生下了儿子亚瑟。

In Arthurian legend, Igraine /ɪˈɡreɪnˌ iːˈɡreɪn/ is the mother of King Arthur. She is also known in Latin as Igerna, in Welsh as Eigyr, in French as Igerne, in Thomas Malory's Le Morte d'Arthur as Ygrayne— often modernized as Igraine—and in Wolfram von Eschenbach's Parzival as Arnive. She becomes the wife of Uther Pendragon, but her first husband was Gorlois; her daughters by Gorlois are Elaine, Morgause and Morgan le Fay.