Family name Koroitamana (Koroitamana 
) , around the globe, is a rare cognomen. The cognomen Koroitamana is habitual in Fiji, where it is quite a common surname, Australia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Fiji, Australia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Koroitamana | Australia, United States, Fiji, United Kingdom |