阿丽安萝德（威尔士语：Arianrhod；威尔士语发音：[arˈjanr̥ɔd]）是威尔士神话中的一个人物，并且她在《马比诺吉昂》的“四分支”（《马索努伊之子马斯》）中扮演了其最重要的角色。她是多恩之女，圭迪昂与吉尔韦绥的姐妹；《威尔士三部曲》称她的父亲是贝利·毛尔。在《马比诺吉昂》中，她的舅舅马斯·阿普·马索努伊（又叫马斯·瓦布·马索努伊）是圭内斯的国王，并且在故事进展期间，她通过魔力而生了两个儿子：迪兰·艾尔·多恩与莱伊·劳·吉费斯。

Arianrhod (Welsh pronunciation: [arˈjanr̥ɔd]) is a figure in Welsh mythology who plays her most important role in the Fourth Branch of the Mabinogi. She is the daughter of Dôn and the sister of Gwydion and Gilfaethwy; the Welsh Triads give her father as Beli Mawr. In the Mabinogi her uncle Math ap Mathonwy is the King of Gwynedd, and during the course of the story she gives birth to two sons, Dylan ail Don and Lleu Llaw Gyffes, through magical means.