Subarctic Bluet
Coenagrion interrogatum
- Least concern
- Card rarity: Common
- Insects

Coenagrion interrogatum, the Subarctic bluet, is a blue and black, pond damselfly of the family Coenagrionidae. The species was first described by Edmond de Sélys Longchamps in 1876.
Classification
- Class
- Insecta
- Order
- Odonata
- Family
- Coenagrionidae
- Genus
- Coenagrion