Ranularia is een geslacht van weekdieren uit de klasse van de Gastropoda (slakken).

Soorten 
 Ranularia andamanensis (Beu, 1987)
 Ranularia arthuri (Beu, 1987)
 Ranularia boschi (Abbott & Lewis, 1970)
 Ranularia caudata (Gmelin, 1791)
 Ranularia cynocephala (Lamarck, 1816)
 Ranularia dunkeri (Lischke, 1868)
 Ranularia encaustica (Reeve, 1844)
 Ranularia exilis (Reeve, 1844)
 Ranularia gallinago (Reeve, 1844)
 Ranularia gutturnia (Röding, 1798)
 Ranularia monilifera (A. Adams & Reeve, 1850)
 Ranularia oblita Lewis & Beu, 1976
 Ranularia oboesa (Perry, 1811)
 Ranularia parthi (Arthur, 1991)
 Ranularia pyrulum (A. Adams & Reeve, 1850)
 Ranularia pyrum (Linnaeus, 1758)
 Ranularia rehderi (A. H. Verrill, 1950)
 Ranularia sarcostoma (Reeve, 1844)
 Ranularia sinensis (Reeve, 1844)
 Ranularia springsteeni (Beu, 1987)
 Ranularia testudinaria (A. Adams & Reeve, 1850)
 Ranularia trilineata (Reeve, 1844)
 Ranularia tripa (Lamarck, 1822)

Synoniemen 
 Ranularia (Lagena) Mörch, 1852 => Gelagna Schaufuss, 1869
 Ranularia (Lagena) rostratus “Martini” Mörch, 1853 => Linatella caudata (Gmelin, 1791)
 Ranularia clavator (Dillwyn, 1817) => Ranularia gutturnia (Röding, 1798)
 Ranularia labiata Schumacher, 1817 => Ranularia gutturnia (Röding, 1798)
 Ranularia longirostra Schumacher, 1817 => Ranularia gutturnia (Röding, 1798)
 Ranularia muricina (Röding, 1798) => Gutturnium muricinum (Röding, 1798)
 Ranularia retusa (Lamarck, 1822) => Ranularia oboesa (Perry, 1811)
 Ranularia tuberosus (Lamarck, 1822) => Gutturnium muricinum (Röding, 1798)

Cymatiidae