Cognomen Naoupu (Naoupu 
) , throughout the world, is an extremely rare last name. The surname Naoupu is habitual in Northern America, particularly the United States, where it is an extremely rare surname. More prevalently, Naoupu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Naoupu | United States |
|
george naoupu New Zealand rugby union player, NZ (b. 1983) |
|
| julianna naoupu New Zealand netball player, NZ (b. 1990) |
|