| Named By: | Mikael Siverson in 1999 |
| Time Period: | Late Cretaceous |
| Location: | Fossil locations known to include Australia, North America and Russia. There is speculation that discoveries in England and Kazakhstan may actually represent further remains |
| Size: | Studies of vertebrae and jaw reconstructions indicate an upper size of 5.5 meters |
| Diet: | Carnivore/Piscivore |
| Fossil(s): | Initially described from 100 teeth and 15 vertebrae, further remains including those of a second species have now been included, including placoid scales |
| Classification: | | Chordata | Chondrichthyes | Elasmobranchii | Lamniformes | Cardabiodontidae | |
Cardabiodon is an extinct genus of lamniform shark, which existed in Australia, Canada, and Europe during the Cretaceous period. It was first named by Michael Siverson in 1999, and contains the species Cardabiodon ricki. Cardabiodon ricki first occurred in the late Cenomanian of Alberta, Canada, and is hypothesized in published literature to have a antitropical distribution.