| Named By: | Tchudinov in 1960 |
| Time Period: | Wordian, 267 Ma |
| Location: | Russia, Perm Krai |
| Size: | Skull about 35 centimetres long, total length at least 2.5 meters |
| Diet: | Carnivore |
| Fossil(s): | Partial remains including the skull |
| Classification: | | Chordata | Therapsida | Biarmosuchia | Eotitanosuchidae | |
| Also known as: | | Ivantosaurus | |
Eotitanosuchus ("dawn giant crocodile") is an extinct genus of biarmosuchian therapsid whose fossils were found in the town of Ochyor in Perm Krai, Russia. It lived about 267 mya.The only species is Eotitanosuchus olsoni.