Kein

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

 * Sybil Kein (1939–2022), American poet
 * Kein Cross, American fashion designer
 * Kein Einaste (born 1985), Estonian skier