Surname Трох (Troch 
, Трох 
) , throughout the world, is quite a rare last name. The cognomen Трох is habitual in Belgium, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Czechia. Not in comparison with a country's population, it is the most numerous in Belgium, Germany, and Czechia. Very seldom, Трох is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Troch | Germany, Belgium, Czechia, United States, France |
| Трох | Ukraine |