Eulachon
Thaleichthys pacificus
- Least concern
- Card rarity: Common
- Fish

The eulachon, or the candlefish, is a small anadromous species of smelt that spawns in some of the major river systems along the Pacific coast of North America from northern California to Alaska.
Classification
- Class
- Actinopterygii
- Order
- Osmeriformes
- Family
- Osmeridae
- Genus
- Thaleichthys