Sertularia is a genus of hydroids in the family Sertulariidae.

The following species are recognized in the genus Sertularia:^[1]

• Sertularia albimaris Mereschkowsky, 1877
• Air Fern (Sertularia argentea Linnaeus, 1758)
• Sertularia australis (Kirchenpauer, 1864)
• Sertularia borneensis Billard, 1925
• Sertularia brashnikowi Kudelin, 1914
• Sertularia brunnea (Stechow, 1923)
• Sertularia camtschatika Vinogradov, 1947
• Sertularia ceylonensis Stechow, 1921
• Sertularia conferta (Kirchenpauer, 1864)
• Sertularia converrucosa Naumov, 1960
• Sertularia cupressina Linnaeus, 1758
• Sertularia cupressoides Clark, 1876
• Sertularia distans (Lamouroux, 1816)
• Sertularia dohrni Stechow, 1923
• Sertularia ephemera Galea, 2010
• Sertularia fabricii Levinsen, 1893
• Sertularia fissa (Thornely, 1904)
• Sertularia flexilis Thompson, 1879
• Sertularia flowersi Nutting, 1904
• Sertularia gracilis Hassall, 1848
• Sertularia gracillima Bale, 1926
• Sertularia hattorii Leloup, 1940
• Sertularia heteroclada (Jäderholm, 1902)
• Sertularia humilis (Armstrong, 1879)
• Sertularia intermedia Levinsen, 1913
• Sertularia latiuscula Stimpson, 1854
• Sertularia linkoi Kudelin, 1914
• Sertularia littoralis Thornely, 1900
• Sertularia loculosa Busk, 1852
• Sertularia maccallumi Bartlett, 1907
• Sertularia macrocarpa Bale, 1884
• Sertularia malayensis Billard, 1925
• Sertularia marginata (Kirchenpauer, 1864)
• Sertularia mediterranea (Marktanner-Turneretscher, 1890)
• Sertularia mertoni Stechow & Müller, 1923
• Sertularia mirabilis (Verrill, 1873)
• Sertularia nasonovi Kudelin, 1913
• Sertularia notabilis Fraser, 1947
• Sertularia nuttingi Levinsen, 1913
• Sertularia orthogonalis Gibbons & Ryland, 1989
• Sertularia perpusilla Stechow, 1919
• Sertularia plumosa (Clark, 1876)
• Sertularia robusta (Clark, 1877)
• Sertularia rugosissima Thornely, 1904
• Sertularia schmidti Kudelin, 1914
• Sertularia similis Clark, 1877
• Sertularia simplex (Fraser, 1938)
• Sertularia snyderi Nutting, 1906
• Sertularia stabilis Fraser, 1948
• Sertularia staurotheca Naumov, 1960
• Sertularia suensoni Levinsen, 1913
• Sertularia tatarica Kudelin, 1913
• Sertularia tenera G. O. Sars, 1874
• Sertularia tenuis Bale, 1884
• Sertularia tolli (Jäderholm, 1908)
• Sertularia tongensis (Stechow, 1919)
• Sertularia trigonostoma Busk, 1852
• Sertularia tumida Allman, 1877
• Sertularia turbinata (Lamouroux, 1816)
• Sertularia unguiculata Busk, 1852
• Sertularia vervoorti Migotto & Calder, 1998
• Sertularia xuelongi Song, Gravili & Wang, 2016