| Named By: | Matthew and Gidley in 1904 |
| Time Period: | Miocene |
| Location: | USA |
| Size: | Weight estimated around 161 kilograms |
| Diet: | Carnivore |
| Fossil(s): | Multiple specimens |
| Classification: | | Chordata | Mammalia | Carnivora | Caniformia | Amphicyonidae | |
| Also known as: | | Hadrocyon | |
Ischyrocyon is an extinct genus of large, mostly carnivorous mammals (bone-crushers) known as bear dogs, of the family Amphicyonidae, subfamily Amphicyoninae, which inhabited North America during the Miocene living from ~16.3--10.3 Ma and existed for approximately 6 million years.