Eien is a Japanese era name.
Eien may also refer to:
- Eien (album), a 1999 album by Zard
- "Eien" (Zard song), 1997
- "Eien" (Beni song), 2012
- "Eien / Universe / Believe in Love", a 2009 song by BoA
This disambiguation page lists articles associated with the title Eien.
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If an internal link led you here, you may wish to change the link to point directly to the intended article.