Gorynychus
| Gorynychus Temporal range:  | |
|---|---|
| Holotype skull of G. masyutinae | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Clade: | Synapsida | 
| Clade: | Therapsida | 
| Clade: | †Therocephalia | 
| Genus: | †Gorynychus Kammerer & Masyutin, 2018 | 
| Type species | |
| †Gorynychus masyutinae Kammerer & Masyutin, 2018 | |
| Other species | |
| 
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Gorynychus is a genus of therocephalian from the mid-Permian from Kotelnich, Russia. The genus contains two species, G. masyutinae and G. sundyrensis. It was named after the three-headed dragon Zmey Gorynych (Змей Горыныч) from Russian mythology.