Bromegrass, the common name for a large group of grasses. Most of them are native to the north temperate zone, where they are grown for forage. In some areas, however, bromegrasses have escaped cultivation and have become troublesome weeds. Hungarian (or smooth) bromegrass is a valuable pasture grass, particularly useful because it does not have awns (whiskery plant organs that stick in the mouths of cattle). Rescue grass is another type of bromegrass. It is grown as a winter-grazing crop in the southern United States.

Bromegrasses make up the genus Bromus of the family Gramincae. Hungarian bromegrass is B. inermis; rescue grass is B. catharticus.