美洲含羞草（学名：Mimosa diplotricha）为豆科含羞草属下的一个种。

Mimosa diplotricha, also known as the giant false sensitive plant or giant sensitive plant, is a species in the Fabaceae family.

A native from Brazil, it is extremely invasive in the Pacific, where it has been introduced on all island groups, except (so far) Tonga. It was introduced on Niuē around 2000, but an ongoing eradication program has virtually destroyed all occurrences there.