Cognomen Jamaru (Jamaru 
) , in all the world, is a very rare surname. The surname Jamaru is characteristic of Nigeria, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and India. More frequently, Jamaru is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jamaru | Malaysia, Nigeria, United States, Tanzania, India |