| Cucullanus | |
|---|---|
| Cucullanus bulbosus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Nematoda |
| Class: | Chromadorea |
| Order: | Rhabditida |
| Family: | Cucullanidae |
| Genus: | Cucullanus O.F. Müller, 1777 |
| Species | |
|
(among more than 100 species)
| |
| Synonyms | |
|
Truttaedacnitis Petter 1974 | |

Cucullanus is a genus of parasitic nematodes. The genus includes more than 100 species.
Among the species, Cucullanus cirratus is a parasite of cod. Cucullanus genypteri is a parasite of the pink cusk-eel, Genypterus blacodes.
Two species known as C. pybusae and C. stelmoides were discovered in 1978 inhabiting the liver and intestines of the American brook lamprey.