Cognomen Treya (Treya 
) , globally, is a very rare last name. The surname Treya is habitual in Israel, where it is a very rare surname, India, where it is an extremely rare surname, and Mexico. In absolute terms, the name is most common in India, Mexico, and Philippines. Likewise, Treya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Treya | Mexico, United States, South Africa, India, Australia |