• Manicaria J. Gaertner, 1791
• Moirara Hort., 1963
• Moniana Distant, 1909 (uncertain) [Family: Issidae]
• Moniana Girard, 1856 accepted as Cyprinella Girard, 1856 [Family: Cyprinidae]
• Monica Coen, 1933 accepted as Monia Gray, 1850 [Family: Anomiidae]
• Monica H. Adams & A. Adams, 1855 accepted as Ovatella Bivona-Bernardi, 1832 [Family: Ellobiidae]
• Monica Villiers, 1975 (uncertain) [Family: Reduviidae]
• Monicampa Piñas Rubio, 2006
• Monicaris Stamberg, 2000 † (uncertain)
• Moniera Loefling, 1758 accepted as Ertela Adanson, 1763 accepted as Monniera Loefling, 1758 [Family: Rutaceae]
• Moniera P. Browne, 1756 accepted as Bacopa Aublet, 1775 [Family: Plantaginaceae]
• Monilaria (Schwantes) Schwantes, 1929
• Monkara B. Monk, 2011
• Monocarya Lonsdale in Dixon, 1850 † (uncertain)
• Monocera Meneghini in Renier, 1847 (unaccepted) [Family: Cnidaria (awaiting allocation)]
• Monocera S. Elliott, 1816 accepted as Ctenium Panzer, 1813 [Family: Poaceae]
• Monocera W. Jack, 1820 accepted as Elaeocarpus Linnaeus, 1753 [Family: Elaeocarpaceae]
• Monocera Wulp, 1898 accepted as Wawu Evenhuis in Evenhuis & Okadome, 1989 [Family: Lauxaniidae]
• Morieara T. Morie & J.M.H. Shaw, 2002