Cognomen Kusniah (Kusniah 
) , in all the world, is a rare family name. The last name Kusniah is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare surname, and Malaysia, where it is a very rare surname. Very seldom, Kusniah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kusniah | Malaysia, Indonesia |