Surname Troianovsky (Troianovsky 
, Троиановский 
) , in the entire world, is a very rare family name. The last name Troianovsky is characteristic of Russia, where it is a very rare surname, Spain, where it is an extremely rare surname, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Troianovsky | Argentina, Spain |
| Троиановский | Russia |
Тройановский, and Трояновскы