Northern Pygmy Mouse
Baiomys taylori
- Least concern
- Card rarity: Common
- Mammals

The northern pygmy mouse is a species of rodent in the family Cricetidae. It is known as ratón-pigmeo norteño in the Spanish-speaking areas of its range. It is found in Mexico and the United States. It is the smallest rodent in North America.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Baiomys