莱拉和玛吉努(阿拉伯语：مجنون لیلی‎,波斯语：لیلی و مجنون عامری ‎)是一个源自古代阿拉伯的短篇爱情故事，后由波斯诗人尼扎米改写为稍长篇的故事并闻名于世，曾被多次拍成电影。这个故事以古诗人凯斯·伊本·阿-穆劳瓦(Qays ibn al-Mulawwah)的爱情故事为原型，曾列入尼扎米的长篇叙事诗《五部曲》("Khamsa")中。

凯斯·阿梅利从小便与莱拉相识相恋。但当他们长大后，莱拉的父亲不允许他们在一起。凯斯醉心于莱拉，以至于后来邻友们用“痴”("Majnun")来描述他。在多数版本的描述中，他们在被分开后就再也没有再见过面。但双方一直到离世前，都还牵挂着对方。

Layla and Majnun (English: Possessed by madness for Layla; Arabic:مجنون لیلی‎; (Majnun Layla)) is a love story that originated as poem in 5th Century Arabia, later was adopted by the Persian poet Nizami Ganjavi who also wrote "Khosrow and Shirin". It is the third of his five long narrative poems, Khamsa (the Quintet).