科摩罗（法语：Comores；阿拉伯语：جزر القمر‎）， 全称科摩罗联盟（法语：Union des Comores；阿拉伯语：الاتّحاد القمريّ‎），是非洲一个位于印度洋上的阿拉伯国家岛国，位于莫桑比克海峡北部，莫桑比克和马达加斯加之间。主要领土为三座火山岛：大科摩罗岛、莫埃利岛（Mohéli）以及昂儒昂岛（Anjouan）。另外科摩罗联盟政府宣称法国统治的马约特岛也属于科摩罗。科摩罗的领土还包括了其他许多小型岛屿。国名科摩罗来源于阿拉伯语al-qamar，意为月亮，在科摩罗的国旗上可以看到月亮的标志。

The Comoros (/ˈkɒməroʊz/; Arabic:جزر القمر‎, Juzur al-Qumur /Qamar), officially the Union of the Comoros (Comorian: Udzima wa Komori, French:Union des Comores, Arabic:الاتحاد القمري‎ al-Ittiḥād al-Qumurī /Qamarī), is a sovereign archipelago island nation in the Indian Ocean located at the northern end of the Mozambique Channel off the eastern coast of Africa between northeastern Mozambique and northwestern Madagascar. Other countries near the Comoros are Tanzania to the northwest and the Seychelles to the northeast. Its capital is Moroni, on Grande Comore.