Steirodon is a genus of large phaneropterine katydids in the family Tettigoniidae, native to tropical and subtropical forests in South America, Central America and Mexico.

They are fairly large to very large leaf-like katydids that are mostly green, between long depending on exact species, and females generally reach a larger size than males of the same species; S. careovirgulatum where females typically are long is the largest katydid of the Americas and among the world´s largest Orthoptera. As far as known, Steirodon and all other members of the tribe Steirodontini are entirely herbivorous.

Species: There following species belongs to the genus Steirodon:

• Steirodon alfaroi (Rehn, 1944)
• Steirodon barcanti Emsley, 1970
• Steirodon barellum (Pictet, 1888)
• Steirodon bilobatoides Emsley, 1970
• Steirodon bilobatum (Scudder, 1875)
• Steirodon careovirgulatum Emsley, 1970
• Steirodon championi (Saussure & Pictet, 1898)
• Steirodon coronatum (Stål, 1874)
• Steirodon degeeri (Stål, 1874)
• Steirodon dentatum (Stål, 1874)
• Steirodon dentiferoides Emsley, 1970
• Steirodon dentiferum Walker, 1869
• Steirodon dohrni (Brunner von Wattenwyl, 1891)
• Steirodon emarginatum (Brunner von Wattenwyl, 1891)
• Steirodon emsleyi Piza, 1979
• Steirodon fastigiosum (Brunner von Wattenwyl, 1878)
• Steirodon flavolineatum (Bruner, 1915)
• Steirodon ganymedes (Rehn, 1944)
• Steirodon irregulariterdentatum (Brunner von Wattenwyl, 1891)
• Steirodon latipennis (Saussure & Pictet, 1898)
• Steirodon maroniensis Emsley, 1970
• Steirodon ponderosum Stål, 1873 – type species by subsequent designation
• Steirodon rarospinulosum (Brunner von Wattenwyl, 1891)
• Steirodon robertsorum Emsley, 1970
• Steirodon rufolineatum Emsley, 1970
• Steirodon sandrae Emsley, 1970
• Steirodon stalii (Brunner von Wattenwyl, 1878)
• Steirodon striolatus (Brunner von Wattenwyl, 1878)
• Steirodon sulcatum Emsley, 1970
• Steirodon unidentatum (Brunner von Wattenwyl, 1891)
• Steirodon validum Stål, 1874