Mule Deer
Odocoileus hemionus
- Least concern
- Card rarity: Common
- Mammals

The mule deer is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer.
Classification
- Class
- Mammalia
- Order
- Artiodactyla
- Family
- Cervidae
- Genus
- Odocoileus