Mastogenius is a genus of beetles in the family Buprestidae, containing the following species:

• Mastogenius aeneus Kerremans, 1897
• Mastogenius aliciae Westcott, 2005
• Mastogenius arizonicus Bellamy, 2002
• Mastogenius barrigai Moore, 1994
• Mastogenius castlei Champlain & Knull, 1922
• Mastogenius cedralensis Manley, 1987
• Mastogenius changonensis Manley, 1986
• Mastogenius coyolensis Manley, 1987
• Mastogenius crenulatus Knull, 1934
• Mastogenius cuneaticollis Van Dyke, 1953
• Mastogenius cyanelytron Westcott, 2008
• Mastogenius cyaneous Fisher, 1922
• Mastogenius elinarae Manley, 1986
• Mastogenius eruleus Obenberger, 1939
• Mastogenius galapagoensis Van Dyke, 1953
• Mastogenius guayasensis Manley, 1986
• Mastogenius guayllabambensis MacRae, 2003
• Mastogenius howdenorum Manley, 1990
• Mastogenius impressipennis Fall, 1906
• Mastogenius insperatus Kurosawa, 1972
• Mastogenius jipijapa Manley, 1986
• Mastogenius laevifrons Germain & Kerremans, 1906
• Mastogenius lizaleriae Moore, 1998
• Mastogenius manglaraltoensis Manley, 1986
• Mastogenius martinezi Cobos, 1956
• Mastogenius pacacua Manley, 1987
• Mastogenius parallelus Solier, 1849
• Mastogenius peruvianus Fisher, 1949
• Mastogenius primaevus Obenberger, 1957
• Mastogenius proximus Cobos, 1981
• Mastogenius puncticollis Schaeffer, 1919
• Mastogenius relictus Bílý, 1979
• Mastogenius reticulicollis Cobos, 1981
• Mastogenius robustus Schaeffer, 1905
• Mastogenius simulans Cobos, 1981
• Mastogenius solieri Thomson, 1878
• Mastogenius subcyaneus (LeConte, 1860)
• Mastogenius sulcicollis Philippi in Philippi & Philippi, 1864
• Mastogenius taoi (Tôyama, 1983)
• Mastogenius testaceipes Obenberger, 1941
• Mastogenius texanus Bellamy, 2002

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