涅斐勒是希腊神话中一朵貌似赫拉的云。在一次宴会上拉比斯（Lapith）的国王伊克西翁调戏神后赫拉。宙斯使赫拉隐身，塑造了涅斐勒来取代赫拉。

伊克西翁醉酒后与这个幻象交配产生了半人半马的半人马。后来这只祖半人马与佩利翁山上的母马交配成为所有半人马的祖先。

此后涅斐勒在奥林匹克的殿堂中游荡。赫拉下令维奥蒂亚的国王阿塔玛斯娶她为妇，两人生下佛里克索斯和赫勒两个孩子。阿塔玛斯却另有新欢，他与底比斯的奠基人卡德摩斯的女儿伊诺住到了一起。两人有两个儿子。

涅斐勒向赫拉告状，赫拉在这种情况下总是发誓要报仇。涅斐勒向维奥蒂亚的男人说了赫拉的决定，并说阿塔玛斯将死，但男人们对他们国王的惧怕胜过对赫拉的惧怕，而女人们则支持伊诺。伊诺设计想要杀佛里克索斯，幸好赫拉克勒斯营救佛里克索斯才没有死。

In Greek mythology, Nephele (/ˈnɛfəˌli/; Greek:Νεφέλη, from νέφος nephos "cloud"; Latinized to Nubes) was a cloud nymph who figured prominently in the story of Phrixus and Helle. Nephele was also the goddess of hospitality.

Greek myth also has it that Nephele is the cloud whom Zeus created in the image of Hera to trick Ixion to test his integrity after displaying his lust for Hera during a feast as a guest of Zeus. Ixion failed in restraining his lust for Hera, thus fathering the Centaurs.