Surname جاجا (Gaga 
, Jaja 
, جاجا 
) , around the globe, is a common family name. The family name جاجا is habitual in Georgia, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Nigeria. Measured by absolute frequency, it is commonest in Nigeria, Indonesia, and India. Also, جاجا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gaga | Indonesia, Democratic Republic of the Congo, India, Ethiopia, Nigeria |
| Jaja | Indonesia, India, Georgia, Ethiopia, Nigeria |
| جاجا | Sudan, Saudi Arabia, Egypt, Palestinian Territory |