蝙蝠葛属（学名：Menispermum）是防已科下的一个属，为多年生攀缘植物。该属共有2种，分布于东亚温带地区和北美。

Menispermum (moonseed) is a small genus of deciduous climbing woody vines in the moonseed family (Menispermaceae). Plants in this genus have small dioecious flowers, and clusters of small grape-like drupes. The name, moonseed, comes from the shape of the seed, which resembles a crescent moon. The word Menispermum is derived from the Greek words mene, meaning moon, and sperma meaning seed. The common name moonseed is also applied to some other species in the related genus Cocculus.