| Named By: | Guillermo W. Rougier, Sebastian Apesteguia & Leandro C. Gaetano in 2011 |
| Time Period: | Late Cretaceous, 99.6-96 Ma |
| Location: | Argentina - Candeleros Formation |
| Size: | Uncertain due to incomplete remains, but estimated to be several centimetres long |
| Diet: | Insectivore |
| Fossil(s): | Two partial skulls and mandibles (lower jaw bones) |
| Classification: | | Chordata | Mammalia | Dryolestoidea | Meridiolestida | |
Cronopio is an extinct genus of dryolestoid mammals known from the Rio Negro region of Argentina.