Family name Tristy (Tristy 
) , in all the world, is a rare cognomen. The last name Tristy is characteristic of Indonesia, where it is a very rare surname, Philippines, where it is an extremely rare surname, and Peru. Measured by absolute frequency, it is the most numerous in Indonesia, Philippines, and the United States. More prevalently, Tristy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tristy | Indonesia, Philippines, Taiwan, Australia, United States |