Surname Uini (Uini 
) , in all the world, is a very rare cognomen. The cognomen Uini is habitual in New Zealand, where it is a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Uini is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uini | Australia, Myanmar, Brazil, United States, India |