Cognomen Ianga (Ianga 
) , in the entire world, is a rare surname. The surname Ianga is habitual in Guinea-Bissau, where it is quite a rare surname, and Brazil, where it is an extremely rare surname. Very seldom, Ianga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ianga | Guinea-Bissau, Nigeria, United States, India, Brazil |