• Ostrya J. Hill, 1757 (unaccepted)
• Ostrya Scopoli, 1760
• Ostrya americana F. Michx. accepted as Ostrya virginiana (Mill.) K. Koch
• Ostrya baileyi Rose accepted as Ostrya virginiana (Mill.) K. Koch
• Ostrya carpinifolia Scop.
• Ostrya chisosensis Correll
• Ostrya guatemalensis (H. Winkl.) Rose
• Ostrya italica Spach accepted as Ostrya carpinifolia Scop.
• Ostrya japonica Sarg.
• Ostrya knowltonii Sarg.
• Ostrya ladelchii Sanguin. accepted as Ostrya carpinifolia Scop.
• Ostrya liana Hu accepted as Ostrya japonica Sarg.
• Ostrya mandshurica Burdischtschew ex Trautv. accepted as Carpinus cordata Blume
• Ostrya mexicana Rose accepted as Ostrya virginiana (Mill.) K. Koch
• Ostrya multinervis Rehder
• Ostrya ostrya MacMill. accepted as Ostrya virginiana (Mill.) K. Koch
• Ostrya rehderiana Chun
• Ostrya trichocarpa D. Fang & Y.S. Wang
• Ostrya virginiana (Mill.) K. Koch
• Ostrya virginica (Münchh.) Willd. accepted as Ostrya virginiana (Mill.) K. Koch
• Ostrya vulgaris Willd. accepted as Ostrya carpinifolia Scop.
• Ostrya yunnanensis W.K. Hu
• Ostryapollenites R. Potonié P.W. Thomson & F. Thiergart, 1950 † (unaccepted)