This list of mammals of Estonia shows the IUCN Red List status of the mammal fauna occurring in Estonia. It is somewhat impoverished compared to that of southern and central Europe due to the short period since the last ice age. Native species are considered to be those which are today present in the country. There are no endemic mammal species in Estonia. The list follows Moks et al. (2015)[1] with later additions.
The following tags are used to highlight each species' conservation status as assessed on the IUCN Red List published by the International Union for Conservation of Nature:
| EX | Extinct | Species is completely extinct |
| EW | Extinct in the wild | Known only to survive in captivity or as a naturalized populations well outside its previous range. |
| CR | Critically endangered | The species is in imminent risk of extinction in the wild. |
| EN | Endangered | The species is facing an extremely high risk of extinction in the wild. |
| VU | Vulnerable | The species is facing a high risk of extinction in the wild. |
| NT | Near threatened | The species does not meet any of the criteria that would categorise it as risking extinction but it is likely to do so in the future. |
| LC | Least concern | There are no current identifiable risks to the species. |
| DD | Data deficient | There is inadequate information to make an assessment of the risks to this species. |