Surname Воян (Vojan 
, Voyan 
, Воян 
) , all around the world, is a rare family name. The last name Воян is characteristic of Romania, where it is a rare surname, Slovenia, and Czechia. Not in comparison with a country's population, it is the most numerous in Eastern Europe, particularly Romania, Czechia, and Ukraine. Also, Воян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vojan | Slovenia, India, Bangladesh, Canada, Czechia |
| Voyan | United States, Russia, Malaysia, India |
| Воян | Russia, Kazakhstan, Ukraine |
| Voian | Greece, United Kingdom, Romania, United States, Germany |