Cognomen Fa'Amausili (Fa'Amausili 
) , globally, is an extremely rare surname. The cognomen Fa'Amausili is characteristic of New Zealand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Fa'Amausili | United States, New Zealand |
|
barry fa'amausili rugby union player, NZ (b. 1988) |
|
| gabrielle fa'amausili New Zealand swimmer, NZ (b. 1999) |
|