Family name Moananui (Moananui 
) , throughout the world, is a very rare surname. The cognomen Moananui is characteristic of Australia and New Zealand, particularly New Zealand, where it is quite a rare surname, and Australia, where it is a very rare surname. Very seldom, Moananui is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Moananui | Australia, United States, New Zealand |
|
tareha te moananui New Zealand politician, NZ (b. 1805) |
|
| moananui akiwa manley NZ swimmer and beauty pageant winner, NZ (b. 1935) |
|