Cognomen Amjah (Amjah 
) , all over the world, is a rare surname. The surname Amjah is habitual in Sri Lanka, where it is quite a rare surname, Malaysia, where it is a rare surname, and Singapore, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Sri Lanka, Malaysia, and Indonesia. Much less frequently, Amjah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amjah | Australia, Philippines, Indonesia, Sri Lanka, Malaysia |