Long-tailed Birch Mouse
Sicista caudata
- Least concern
- Card rarity: Common
- Mammals

The long-tailed birch mouse is a species of birch mouse found in Northeast Asia. It has been reported from the Ussuri region of Manchuria, Sakhalin Island and Primorsky Krai in Russia, and northern North Korea. It is listed as data deficient by the IUCN.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Sminthidae
- Genus
- Sicista