Surname Knah (Knah 
) , in the entire world, is a very rare cognomen. The cognomen Knah is characteristic of Saudi Arabia, where it is a rare surname, the United States, where it is an extremely rare surname, and India. Very seldom, Knah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Knah | India, United States, Saudi Arabia |