美洲鬣蜥（学名：Iguana iguana）又名绿鬣蜥，是一种生活在树上的大型蜥蜴，头尾全长可以超过一公尺，寿命可长达10年以上，幼年时以昆虫或小动物为食，而在成年后改以植物的叶、嫩芽、花、果实为食物，为日行性爬虫类，每胎可产24-45颗卵。主要分布于中美洲的墨西哥至巴拉圭间、南美洲、加勒比海及佛罗里达等地。 被列入《濒危野生动植物种国际贸易公约》附录二中。 绿鬣蜥常被人作为宠物饲养，中国和部份美洲国家设有养殖场大量饲养绿鬣蜥以作售卖用途。 因为人为的饲养及野放，在**己成为外来种，在**市及等邻近乡镇已建之繁殖族群

The green iguana (Iguana iguana), also known as common iguana or American iguana, is a large, arboreal, mostly herbivorous species of lizard of the genus Iguana native to Central, South America, and the Caribbean. Usually, this animal is simply called the iguana. The green iguana ranges over a large geographic area, from southern Brazil and Paraguay as far north as Mexico and the Caribbean Islands. They have been introduced from South America to Puerto Rico and are very common throughout the island, where they are colloquially known as "Gallina de palo" and considered an invasive species; in the United States feral populations also exist in South Florida (including the Florida Keys), Hawaii, the U.S. Virgin Islands and the Rio Grande Valley of Texas.