大麦属（学名：Hordeum）是禾本科下的一个属，为一年生或多年生草本植物。该属共有约20余种，分布于温带地区。

大麦属物种除了包括各种品种的大麦以外，青稞也属于大麦属。

Hordeum is a genus of annual and perennial plants in the grass family. They are native throughout the temperate regions of Africa, Eurasia, and the Americas.

One species, H. vulgare (barley), is of major commercial importance as a cereal grain, used as fodder crop and for malting in beer and whiskey production. Some species are nuisance weeds introduced worldwide by human activities others endangered due to habitat loss.