Family name Tuivaga (Tuivaga 
) , globally, is a rare last name. The cognomen Tuivaga is characteristic of Fiji, where it is quite a common surname, Australia, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tuivaga | Fiji, United Kingdom, United States, Australia |
| timoci tuivaga Fijian judge, FJ (b. 1931) |
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| evelyn tuivaga researcher |
|