• Decodon Günther, 1861 [Family: Labridae]
• Decodon J.F. Gmelin, 1791 [Family: Lythraceae]
• Decodon Müller Hal. ex V.F. Brotherus, 1891 (unaccepted) [Family: Orthotrichaceae]
• Decodon grandisquamis (Smith, 1968)
• Decodon melasma Gomon, 1974
• Decodon pacificus (Kamohara, 1952)
• Decodon puellaris (Poey, 1860)
• Decodon verticillatus (L.) Ell.
• Decodontia A.H. Haworth, 1812 (uncertain)