Surname Kasihku (Kasihku 
) , in all the world, is a very rare family name. The cognomen Kasihku is habitual in Saudi Arabia, where it is a rare surname, and Malaysia, where it is a very rare surname. Much less frequently, Kasihku is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kasihku | Malaysia, Saudi Arabia |