Family name Clah (Clah 
) , all over the world, is a rare last name. The family name Clah is habitual in Ivory Coast, where it is a rare surname, the United States, where it is a very rare surname, and Indonesia. Likewise, Clah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Clah | Indonesia, Ivory Coast, Thailand, United States, Democratic Republic of the Congo |
|
arthur wellington clah Chief of the tsimshian, CA (b. 1831) |
|
| alfred clah Navajo artist |
|