Surname Mualaulau (Mualaulau 
) , in the entire world, is a very rare last name. The cognomen Mualaulau is habitual in Fiji, where it is quite a rare surname, Australia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mualaulau | Australia, Fiji, United Kingdom |