| Attonitus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Characiformes |
| Family: | Stevardiidae |
| Subfamily: | Diapominae |
| Genus: | Attonitus Vari & H. Ortega, 2000 |
| Type species | |
| Attonitus irisae Vari & H. Ortega, 2000 | |

Attonitus is a genus of freshwater ray-finned fishes, characins, belonging to the family Stevardiidae. The fishes in this genus are endemic to Peru.
Attonitus contains the following valid species: