Abstract: A barley cultivar, designated Pronghorn, is disclosed. The invention relates to the seeds of barley cultivar Pronghorn, to the plants of barley Pronghorn, and to methods for producing a barley plant produced by crossing barley cultivar Pronghorn with itself or another barley variety. The invention also relates to methods for producing a barley plant containing in its genetic material one or more transgenes and to the transgenic barley plants and plant parts produced by those methods. The invention also relates to barley varieties or breeding varieties and plant parts derived from barley cultivar Pronghorn, to methods for producing other barley varieties, lines or plant parts derived from barley cultivar Pronghorn, and to the barley plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid barley seeds and plants produced by crossing barley cultivar Pronghorn with another barley cultivar.