| Named By: | Cornalia & Chiozza in 1852 |
| Time Period: | 100 Ma Late Cretaceous |
| Location: | Croatia. Palestinian Teritory. Slovenia |
| Size: | Roughly about 1 meter long |
| Diet: | Carnivore/Piscivore |
| Fossil(s): | At least three specimens known |
| Classification: | | Chordata | Reptilia | Mosasauroidea | |
Mesoleptos was a genus of mosasauroid from the Late Cretaceous period.