A barley cultivar, designated Oreana, is disclosed. The disclosure relates to seeds, plants, and derivatives of barley cultivar Oreana, and methods for producing a barley plant by crossing Oreana with itself or another barley variety. The disclosure also relates to barley varieties or breeding varieties and plant parts derived from barley Oreana, to methods for producing other barley varieties, lines, or plant parts derived from barley Oreana, and to the barley plants, varieties, and their parts derived from the use of those methods. The disclosure further relates to hybrid barley seeds and plants produced by crossing barley cultivar Oreana with another barley cultivar. The disclosure relates to methods for developing other barley varieties or breeding lines derived from variety Oreana, including cell and tissue cultures and haploid systems.
