菜豆属（学名：Phaseolus）是蝶形花科下的一个属，为缠绕或直立草本植物。该属共有150种以上，分布于热带和温带地区。

Phaseolus (bean, wild bean) is a genus in the family Fabaceae containing about 70 plant species, all native to the Americas, primarily Mexico.

At least four of the species have been domesticated since pre-Columbian times for their beans. Most prominent among these is the common bean, P. vulgaris, which today is cultivated worldwide in tropical, semitropical, and temperate climates.