Last name Kaumoana (Kaumoana 
) , worldwide, is a very rare cognomen. The family name Kaumoana is habitual in Australia and New Zealand, particularly New Zealand, where it is a rare surname, and Australia, where it is a very rare surname. Very seldom, Kaumoana is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaumoana | United States, New Zealand, Australia |