茅香属（学名：Hierochloe）是禾本科下的一个属，为多年生、直立、有香气草本植物。该属共有约20种，分布于温带和寒带地区。

Hierochloe is a genus of plants in the grass family known generally as sweetgrass. These are perennial rhizomatous grasses found primarily in temperate and subarctic regions of Eurasia and North America, although some species extend southwards into Australia and Latin America.