River Bluet
Enallagma anna
- Least concern
- Card rarity: Common
- Insects

Enallagma anna, the river bluet, is a species of narrow-winged damselfly in the family Coenagrionidae. It is found in southern Canada and western and northeastern United States.
Classification
- Class
- Insecta
- Order
- Odonata
- Family
- Coenagrionidae
- Genus
- Enallagma