Eider (disambiguation)
Eider may refer to:
- two genera and four species of birds in the duck subfamily Merginae:
- Somateria
- Steller's Eider (Polysticta stelleri)
- the downy feathers from these ducks, used to fill pillows, duvets, and other bedding.
- a river in Schleswig-Holstein, Germany; see Eider River
- a comic book character; see Eider Duck
Categories: Disambiguation