发草属（学名：Deschampsia）是禾本科下的一个属，为多年生草本植物。该属共有约40种，分布于温带地区。

Deschampsia is a genus of plants in the grass family, commonly known as hair grass or tussock grass. The genus is widespread across many countries.

The genus is named for French physician and naturalist Louis Auguste Deschamps, 1765-1842.

Deschampsia species are used as food plants by the larvae of some Lepidoptera species including Antler Moth, The Clay, Clouded-bordered Brindle, Common Wainscot, Dark Arches, Dusky Brocade, Shoulder-striped Wainscot, Smoky Wainscot and Wall.