| Eriauchenus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Archaeidae |
| Genus: | Eriauchenus O. Pickard-Cambridge, 1881 |
| Type species | |
| E. workmani O. Pickard-Cambridge, 1881 | |
| Species | |
|
20, see text | |

Eriauchenus is a genus of East African assassin spiders first described by O. Pickard-Cambridge in 1881. The genus name has been incorrectly spelt "Eriauchenius".
As of November 2021[update], it contained twenty species, all found on Madagascar: