Surname Troyanskii (Troyanskii 
, Троянский 
) , around the globe, is a rare cognomen. The family name Troyanskii is habitual in Kyrgyzstan, where it is a rare surname, Russia, and Ukraine, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Troyanskii | Russia |
| Троянский | Kazakhstan, Russia, Kyrgyzstan, Ukraine |
Троянскии, Троянскій, and Троянський