| Named By: | unavailable |
| Time Period: | Aquitanian-Pleistocene Early Miocene to Early Pleistocene |
| Location: | Europe, Middle East, Asia, North America and Southern Africa |
| Size: | Up to 2.5 meters long, but exact size depends upon species |
| Diet: | Primarily carnivorous but also thought to be an omnivore |
| Fossil(s): | Many known specimens allowing for complete restorations |
| Classification: | | Chordata | Mammalia | Carnivora | Amphicyonidae | Amphicyoninae | |
Amphicyon ("ambiguous dog") is an extinct genus of large carnivorous bone-crushing mammals, popularly known as bear-dogs, of the family Amphicyonidae, subfamily Amphicyoninae, from the Aquitanian Epoch until the early Pleistocene. They ranged over North America, Europe, Asia, and Africa from 16.9--2.6 Ma ago, existing approximately 14.3 million years.