Surname Jjuma (Йума 
, Jjuma 
) , across the world, is a very rare cognomen. The family name Jjuma is habitual in Sub-Saharan Africa, particularly Tanzania, where it is a very rare surname. More prevalently, Jjuma is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Йума | Russia |
| Jjuma | Tanzania, India |