Graham's Crawfish Snake
Regina grahamii
- Least concern
- Card rarity: Common
- Reptiles

Regina grahamii, commonly known as Graham's Crayfish Snake, is a species of nonvenomous semiaquatic snake in the subfamily Natricinae of the family Colubridae. The species is endemic to the central United States.
Classification
- Class
- Reptilia
- Order
- Squamata
- Family
- Colubridae
- Genus
- Regina