山葵属（学名：Syagrus）是棕榈科下的一个属，为乔木植物。该属已确定至少59种，原产于巴西至阿根廷北部。

Syagrus is a genus of Arecaceae (palms), native to South America, with one species endemic to the Lesser Antilles. The genus is closely related to the Cocos, or coconut genus, and many Syagrus species produce edible seeds similar to the coconut.