| Ctenodus Temporal range: | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Dipnoi |
| Family: | †Ctenodontidae |
| Genus: | †Ctenodus Agassiz, 1838 |
Ctenodus (from Greek: κτείς kteis, 'comb' and Greek: ὀδούς odoús 'tooth') is an extinct genus of prehistoric lungfish and the longest-surviving genus of Carboniferous lungfish.