| Named By: | Gurich in 1912 |
| Time Period: | Mid Miocene-Late Pleistocene (Friasian-Lujanian)~15.97-0.012 Ma |
| Location: | South America including, Argentina, Brazil, Colombia, Peru and Venezuela |
| Size: | Estimated at up to 10 meters long |
| Diet: | Carnivore |
| Fossil(s): | Many specimens of skull material and teeth |
| Classification: | | Chordata | Reptilia | Crocodylomorpha | Crocodylia | Gavialidae | Gryposuchinae | |
| Also known as: | | Ramphostoma neogaeus | |
Gryposuchus is an extinct genus of gavialoid crocodilian. It is the type genus of the subfamily Gryposuchinae. Fossils have been found from Argentina, Colombia, Venezuela, Brazil and the Peruvian Amazon. The genus existed from the Middle Miocene to Late Pleistocene (Friasian to Lujanian). One recently described species, G. croizati, grew to an estimated length of 10 metres (33 ft).