Cognomen Traier (Trayer 
, Traier 
) , in the entire world, is quite a rare surname. The surname Traier is habitual in Qatar, where it is a rare surname, Ireland, and Hungary. Not in comparison with a country's population, it is commonest in the United States, Germany, and Canada. Much less frequently, Traier is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trayer | United Kingdom, Canada, Ireland, United States, Germany |
| Traier | Qatar, Romania, United States, Germany, Hungary |