• Leptalestes Davis, 2007 †
• Leptaletis Warren, 1894 (uncertain)
• Leptobates Thomson, 1897 (unaccepted)
• Leptoceletes Green, 1952 (uncertain)
• Leptoderes Audinet-Serville, 1838 [Family: Tettigoniidae]
• Leptoderes Dujardin, 1844 † accepted as Agfa Chitwood, 1935 [Family: Agfidae]
• Leptoderes Dujardin, 1845 accepted as Leptodera Dujardin, 1845 [Family: Alloionematidae]
• Leptolepis Agassiz, 1832 † [Family: Leptolepididae]
• Leptolepis Boeckeler, 1888 (uncertain) [Family: Cyperaceae]
• Leptolepis Geinitz, 1868 (uncertain) [Family: Pisces (awaiting allocation)]
• Leptolepis Guichenot, 1867 accepted as Pampus Bonaparte, 1834 [Family: Stromateidae]
• Leptolepis Ley, 1917 [Family: Scarabaeidae]
• Leptolestes Bergroth, 1906 (uncertain)
• Leptomenes Bruce, 2006 accepted as Leptomenaeus Bruce, 2007 [Family: Palaemonidae]
• Leptomenes Giordani Soika, 1939 [Family: Vespidae]
• Leptomeres Rambur, 1842 (uncertain) [Family: Chloroperlidae]
• Leptomeres Walker in Curtis, 1829-30 (unaccepted > nomen nudum) [Family: Hymenoptera (awaiting allocation)]
• Leptomites Bode, 1953 †
• Leptonectes McGowan, 1996 † (uncertain)
• Leptonetus Masner, 1964 (uncertain)
• Leptotes J. Lindley, 1833 [Family: Orchidaceae]
• Leptotes Scudder, 1876 [Family: Lycaenidae]