Family name Ahaja (Ahaja 
) , globally, is a rare last name. The last name Ahaja is characteristic of Philippines, where it is a rare surname, Malaysia, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in Philippines, India, and Nigeria. Much less frequently, Ahaja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ahaja | Philippines, United States, India, Nigeria, Malaysia |