| Named By: | Ray Lankester in 1869 |
| Time Period: | Early Devonian |
| Location: | Scotland |
| Size: | About 25 centimetres long |
| Diet: | Sediment feeder |
| Fossil(s): | More than two hundred individuals |
| Classification: | | Chordata | Osteostraci | Cornuata | Zenaspidida | Zenaspididae | |
Zenaspis is an extinct genus of jawless fish which existed during the early Devonian period. Due to it being jawless, Zenaspis was probably a bottom feeder. The fish was around 10 inches (25 cm) in length.