雨树（学名：Samanea saman）为豆科雨树属下的一个种。

In the Caribbean region, it is occasionally called marsave.

As an introduced plant on Fiji, it is called in some regions vaivai (ni vavalagi), from vaivai "watery" (in allusion to the tree's "rain") + vavalagi "foreign". In some parts of Vanua Levu, Fiji the word vaivai is used to describe the lebbeck, because of the sound the seedpods make, and the word mocemoce (sleepy, or sleeping) is used for A. saman due to the 'sleepiness' of its leaves.