Last name Демосфен (Demosthenes 
, Demostene 
, Демосфен 
) , around the globe, is a rare family name. The last name Демосфен is characteristic of Haiti, where it is quite a rare surname, Georgia, where it is a rare surname, and Romania. Not in comparison with a country's population, it is the most numerous in the United States, Haiti, and Romania. More frequently, Демосфен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Demosthenes | Greece, Haiti, Philippines, Brazil, United States |
| Demostene | Romania, Dominican Republic, Italy, Brazil, United States |
| Демосфен | Russia, Ukraine |
| Demosfen | Georgia |
Demosten, Demostenes, Demosteni, Demosteno, Dimos, Dimosthenis, Démosthènes, Δήμος, Δημοσθένης, and Димосфенис