Across the world, Трубетскои (Трубетскои 
, Troubetskoi, Trubetskoi 
) is an extremely rare unknown gender first name. Much more prevalently, Трубетскои is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Трубетскои | Russia |
| Trubetskoi | Russia, Estonia |