All around the world, Tiarni (Tiarni 
) is a rare girly forename. The forename Tiarni is habitual in Australia, where it is a rare feminine name, and Indonesia, where it is a very rare female name. Very seldom, Tiarni is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Tiarni | Australia, Indonesia, United Kingdom, United States |