驴臭草属（学名：Onosma）是紫草科下的一个属，为草本或灌木植物。该属共有约150种，分布于地中海区至喜马拉雅。

Onosma is a genus of flowering plants in the family Boraginaceae. They are native to the Mediterranean and western Asia. They grow in dry, sunny habitats with rocky, sandy substrates. Some are popular as rock garden plants.

Estimates of the number of species in the genus range from about 85 or 88 to 150. The systematics are unclear and the group is in need of study and revision.