Dain (다인) may refer to:
- Artists
- DAIN, a soloist singer
- People
- Lee Dain (currently known as Rora) of BABYMONSTER, former member of U.SSO Girl
- Da In of Coda Bridge
- Dain of IITERNITI
- Dain, former member of HOT ISSUE and former CAP-TEEN and Time Turner contestant
- Dain, former member of MOA
- Dain, former member of Six Bomb
- Dain, former member of Wassup