| Named By: | Agassiz in 1833 |
| Time Period: | Early Devonian to Early Permian, 409-284 Ma |
| Location: | Worldwide |
| Size: | 30 centimetres long |
| Diet: | Filter feeder |
| Fossil(s): | Many remains including complete specimens |
| Classification: | | Chordata | Acanthodii | Acanthodiformes | |
Acanthodes (meaning spiny base or thorny base) is an extinct genus of spiny shark. Fossils have been found in Europe, North America, and Australia.