• Anachyrium E.G. von Steudel, 1853 accepted as Paspalum Linnaeus, 1759
• Anatherium Ameghino, 1887 † accepted as Cladosictis Ameghino, 1887 †
• Ancyrium Werneck, 1841 (uncertain)
• Anthericum Linnaeus, 1753
• Anthidium Fabricius, 1805
• Anthobium Erichson, 1839 accepted as Eusphalerum Kraatz, 1858
• Anthobium Leach in Samouelle, 1819
• Anthodium Velenovský & Viniklar, 1931 † (uncertain)
• Anthotium R. Brown, 1810
• Anthurium H.W. Schott, 1829
• Anthyria Swinhoe, 1892 (uncertain)
• Athyrium A.W. Roth, 1799 [Family: Athyriaceae]
• Athyrium Berthold in Latreille, 1827 accepted as Athyreus MacLeay, 1819 [Family: Bolboceratidae]