亚瓜龙（葡萄牙语：Jaguarão）是巴西南大河州的一个市镇。总面积2054.39平方公里，总人口27944人，人口密度13.6人/平方公里。

• 南大河州市镇列表

Jaguarão (Portuguese pronunciation: [ʒaɡwaɾˈɐ̃w̃]) is a municipality in the southern Brazilian state of Rio Grande do Sul located on the shores of the Jaguarão River, bordering Uruguay, and a short distance inland from the Mirim Lagoon.

In 1865 it was the site of the Battle of Jaguarão.