Kein or KEIN may refer to:
- Kein language, a language of Papua New Guinea
- Kein (EP), a 2007 EP by Japanese metal band Unsraw
- KEIN, an American radio station
People with the name
edit- Sybil Kein (1939–2022), American poet
- Kein Cross, American fashion designer
- Kein Einaste (born 1985), Estonian skier