Merriam's Piñon Mouse
Peromyscus gratus
- Least concern
- Card rarity: Common
- Mammals

Osgood's mouse is a species of rodent in the family Cricetidae. It is a species of the genus Peromyscus, a closely related group of New World mice often called "deermice". It is endemic to Mexico. Its name references Wilfred Hudson Osgood.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Cricetidae
- Genus
- Peromyscus