Surname Faaui-Siakumi (Faaui-Siakumi 
) , across the world, is an extremely rare family name. The surname Faaui-Siakumi is habitual in Australia and New Zealand, particularly New Zealand, where it is a rare surname. Parts of the name also exists independently as a last name Faaui, and a first name Siakumi.
| VARIANT | COUNTRY |
|---|---|
| Faaui-Siakumi | New Zealand |