| Cyclostoma | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Pomatiidae |
| Genus: | Cyclostoma Lamarck, 1799 |
| Type species | |
| Turbo scalaris Linnaeus, 1758 | |

Cyclostoma is an obsolete genus name of operculate snails with circular aperture.
This genus has become a synonym of Epitonium Röding, 1798