• Abyssaster diadematus (Sladen, 1883)
• Abyssaster planus (Sladen, 1883)
• Abyssaster tara (Wood-Mason & Alcock, 1891)
• Acalia erythraea Gray, 1840 represented as Linckia (Acalia) erythraea Gray, 1840
• Acalia intermedia Gray, 1840 represented as Linckia (Acalia) intermedia Gray, 1840
• Acalia pulchella Gray, 1840 represented as Linckia (Acalia) pulchella Gray, 1840
• Acantharchaster aciculosus Fisher, 1910 accepted as Nearchaster (Nearchaster) aciculosus (Fisher, 1910)
• Acantharchaster dawsoni (Verrill, 1880) accepted as Cheiraster (Luidiaster) dawsoni (Verrill, 1880)
• Acantharchaster intermedius Fisher, 1910 accepted as Myonotus intermedius (Fisher, 1910)
• Acantharchaster pedicellaris Fisher, 1910 accepted as Nearchaster (Nearchaster) pedicellaris (Fisher, 1910)
• Acantharchaster variabilis Fisher, 1910 accepted as Nearchaster (Nearchaster) variabilis (Fisher, 1910)
• Acantharchaster variabilis pedicellaris Fisher, 1910 accepted as Acantharchaster pedicellaris Fisher, 1910 accepted as Nearchaster (Nearchaster) pedicellaris (Fisher, 1910)
• Acanthaster benziei Worheide, Kaltenbacher, Cowan & Haszprunar, 2022
• Acanthaster brevispinus Fisher, 1917
• Acanthaster brevispinus brevispinus Fisher, 1917
• Acanthaster brevispinus seychellensis Jangoux & Aziz, 1984
• Acanthaster echinites (Ellis & Solander, 1786) accepted as Acanthaster planci (Linnaeus, 1758)
• Acanthaster echinus Gervais, 1841 accepted as Acanthaster planci (Linnaeus, 1758)
• Acanthaster ellisi (Gray, 1840) accepted as Acanthaster planci (Linnaeus, 1758)
• Acanthaster ellisi pseudoplanci Caso, 1962 accepted as Acanthaster pseudoplanci Caso, 1962 accepted as Acanthaster planci (Linnaeus, 1758)
• Acanthaster mauritiensis de Loriol, 1885
• Acanthaster planci (Linnaeus, 1758)
• Acanthaster pseudoplanci Caso, 1962 accepted as Acanthaster planci (Linnaeus, 1758)
• Acanthaster solaris (Schreber, 1793) accepted as Acanthaster planci (Linnaeus, 1758)
• Acheronaster tumidus H.E.S. Clark, 1982
• Acodontaster abbreviatus Koehler, 1923 accepted as Acodontaster conspicuus (Koehler, 1920)
• Acodontaster capitatus (Koehler, 1912)
• Acodontaster ceramoideus Fisher, 1940 accepted as Acodontaster elongatus (Sladen, 1889)
• Acodontaster conspicuus (Koehler, 1920)
• Acodontaster cremeus (Ludwig, 1903) accepted as Acodontaster elongatus (Sladen, 1889)
• Acodontaster elongatus (Sladen, 1889)
• Acodontaster elongatus elongatus (Sladen, 1889)
• Acodontaster elongatus f. capitatus (Koehler, 1912) accepted as Acodontaster capitatus (Koehler, 1912)
• Acodontaster elongatus f. ceramoideus Fisher, 1940 accepted as Acodontaster ceramoideus Fisher, 1940 accepted as Acodontaster elongatus (Sladen, 1889)
• Acodontaster elongatus granuliferus (Koehler, 1912)
• Acodontaster elongatus var. abbreviatus Koehler, 1923 accepted as Acodontaster abbreviatus Koehler, 1923 accepted as Acodontaster conspicuus (Koehler, 1920)
• Acodontaster granuliferus Koehler, 1912 accepted as Acodontaster elongatus granuliferus (Koehler, 1912)
• Acodontaster hodgsoni (Bell, 1908)
• Acodontaster hodgsoni f. hodgsoni (Bell, 1889)
• Acodontaster hodgsoni f. stellatus (Koehler, 1920)
• Acodontaster marginatus (Koehler, 1912)
• Acodontaster miliaris (Gray, 1847) accepted as Diplodontias miliaris (Gray, 1847)
• Acodontaster waitei (Koehler, 1920) accepted as Acodontaster conspicuus (Koehler, 1920)
• Acontiaster bandanus Döderlein, 1921
• Advenaster inermis Hess, 1955 †
• Ailsastra achituvi O'Loughlin & Rowe, 2005
• Ailsastra amezianeae O'Loughlin & Rowe, 2005
• Ailsastra booneni O'Loughlin & Rowe, 2005
• Ailsastra eleaumei O'Loughlin & Rowe, 2005
• Ailsastra heteractis (H.L. Clark, 1938)
• Ailsastra paulayi O'Loughlin & Rowe, 2005
• Akelbaster novaecaledoniae Mah, 2007
• Albatrossaster nudus Ludwig, 1907 (uncertain > nomen dubium)
• Albatrossaster richardi Koehler, 1909 accepted as Porcellanaster ceruleus Wyville Thomson, 1878
• Albatrossaster semimarginalis Ludwig, 1905 accepted as Porcellanaster ceruleus Wyville Thomson, 1878
• Albatrossia nuda (Ludwig, 1907) accepted as Porcellanaster Wyville Thomson, 1878
• Albatrossia semimarginalis Ludwig, 1905 accepted as Porcellanaster ceruleus Wyville Thomson, 1878
• Aldebarania arenitea Blake & Sturgeon, 1995 †
• Aldebarania taberna Blake & Jagt, 2005 †
• Aleutiaster schefferi A.H. Clark, 1939
• Alexandraster inflatus Fisher, 1906 accepted as Poraniopsis inflata (Fisher, 1906)
• Alkaidia megaungula Ewin & Gale, 2020 †
• Alkaidia sumralli Blake & Reid, 1998 †
• Allopatiria ocellifera (Gray, 1847) accepted as Asterina ocellifera (Gray, 1847) accepted as Patiria ocellifera Gray, 1847
• Amphiaster insignis Verrill, 1868
• Anchitosia queenslandensis (Livingstone, 1932)
• Andora (Andora) bruuni Rowe, 1977
• Andora (Andora) faouzii (Macan, 1938)
• Andora (Dorana) popei Rowe, 1977
• Andora (Dorana) wilsoni Rowe, 1977
• Anodiscus crispatus (Bruzelius, 1805) accepted as Ctenodiscus crispatus (Bruzelius, 1805)
• Anseropoda antarctica Fisher, 1940 accepted as Astrotholus antarcticus (Fisher, 1940)
• Anseropoda aotearoa McKnight, 1973
• Anseropoda diaphana (Sladen, 1889)
• Anseropoda fisheri Aziz & Jangoux, 1985
• Anseropoda grandis Mortensen, 1933
• Anseropoda habracantha H.L. Clark, 1923
• Anseropoda insignis Fisher, 1906
• Anseropoda lobiancoi (Ludwig, 1897)
• Anseropoda ludovici (Koehler, 1909)
• Anseropoda macropora Fisher, 1913
• Anseropoda membranacea (Retzius, 1783) accepted as Anseropoda placenta (Pennant, 1777)
• Anseropoda membranacea Nardo, 1834 accepted as Anseropoda placenta (Pennant, 1777)
• Anseropoda novemradiata (Bell, 1905)
• Anseropoda pellucida (Alcock, 1893)
• Anseropoda petaloides (Goto, 1914)
• Anseropoda placenta (Pennant, 1777)
• Anseropoda rosacea (Lamarck, 1816)
• Anseropoda tenuis (Goto, 1914)
• Anthaster valvulatus (Muller & Troschel, 1843)
• Anthenea acanthodes H.L. Clark, 1938
• Anthenea acuta (Perrier, 1869) accepted as Goniodiscus acutus Heller, 1863 accepted as Peltaster placenta (Müller & Troschel, 1842)
• Anthenea aspera Döderlein, 1915
• Anthenea australiae Döderlein, 1915
• Anthenea australiae sidneyensis Doderlein, 1915
• Anthenea chinensis Gray, 1840
• Anthenea conjugens Döderlein, 1935
• Anthenea crassa H.L. Clark, 1938
• Anthenea crudelis Döderlein, 1915
• Anthenea diazi Domantay, 1969