Last name جانجا (Ganga 
, Janja 
, Junga 
) , in the world, is a common cognomen. The last name جانجا is characteristic of the Democratic Republic of the Congo, where it is quite a common surname, Suriname, and Slovenia (explore the name in all countries). In absolute terms, it is commonest in the Democratic Republic of the Congo, India, and Angola. More frequently, جانجا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ganga | Nepal, India, Democratic Republic of the Congo, Sri Lanka, Saudi Arabia |
| Janja | Tanzania, Brazil, India, Slovenia, Croatia |
| Junga | Tanzania, Nepal, South Korea, India, Saudi Arabia |
| جانجا | Egypt |