大翅蓟属（学名：Onopordum）是菊科下的一个属，为一年生或二年生草本植物。该属共有40种以上，分布于欧洲、北非和西亚。

Onopordum L., cottonthistle, is a genus of plants in the thistle tribe within the Asteraceae. They are native to southern Europe, northern Africa, the Canary Islands, the Caucasus, and southwest and central Asia. They grow on disturbed land, roadsides, arable land and pastures.