至福乐土（Elysium）或是乐土平原（Elysian Fields）（古希腊语：Ἠλύσιον πεδίον，Ēlýsion pedíon，音译：伊利西恩、伊利西昂。中文翻译上亦可名为归静乐土或是归净乐土，意为回归安静或回归纯净的乐土。）是一个来世观的理念祂随着时间的推移并由一些希腊的宗教教派的仪式与哲学流派所延续发展。最初是从冥府（Hades）范围分离出来得，能够获准进入之资格为死后即将加入诸神行列的凡人和英雄等等。后来，祂也扩展到包含了由众神所挑选的人，如正直有道德的人，还有伟人，在那里死后的他们依然可以保有幸福，如生前所受到的庇佑以及快乐的生活，并且可以热中于采取任何他们可以享福的生活方式。

Elysium or the Elysian Fields (Ancient Greek: Ἠλύσιον πεδίον, Ēlýsion pedíon) is a conception of the afterlife that developed over time and was maintained by some Greek religious and philosophical sects and cults. Initially separate from the realm of Hades, admission was reserved for mortals related to the gods and other heroes. Later, it expanded to include those chosen by the gods, the righteous, and the heroic, where they would remain after death, to live a blessed and happy life, and indulging in whatever employment they had enjoyed in life.