Similar spellings:
* Karyn
* Karon
* Karren
* Keren
* Kayren
Variations using different letters:
* Carren
* Cairn
* Kaaren
International spellings:
* Carina (Italian, Spanish, Romanian)
* Karina (Russian, Polish, Czech)
* Karine (French)
Other:
* Kareena (Indian)
* Carine (Dutch)
Keep in mind that some of these variations have their own unique meanings and origins.