Family name Halaifonua (Halaifonua 
) , worldwide, is a very rare surname. The cognomen Halaifonua is characteristic of Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Halaifonua | Australia, United States |
| david halaifonua Tongan rugby union player, TO (b. 1987) |
|