Family name Guarani-Kaiowá (Guarani-Kaiowá 
) , all over the world, is an extremely rare last name. The last name Guarani-Kaiowá is characteristic of Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname. Parts of the name also exists independently as a last name Kaiowá.
| VARIANT | COUNTRY |
|---|---|
| Guarani-Kaiowá | Brazil |