Cognomen Tarnoy (Tarnoy 
) , across the world, is a very rare surname. The surname Tarnoy is characteristic of Hungary, where it is a rare surname, Canada, where it is a very rare surname, and the United Kingdom. Much less frequently, Tarnoy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tarnoy | United Kingdom, Hungary, United States, India, Canada |