科阿尼亚（西班牙语：Coaña），是西班牙阿斯图里亚斯的一个市镇。总面积66平方公里，总人口3651人（2001年），人口密度55人/平方公里。

Coaña (Galician-Asturian: Cuaña) is a municipality in the Autonomous Community of the Principality of Asturias, Spain. It lies along the Cantabrian Sea to the north, and is bordered on the south by Boal, on the east by Navia and Villayón across the Navia River, and on the west by El Franco.