Cognomen ثلاثه (ثلاثه 
) , all around the world, is quite a rare family name. The family name ثلاثه is characteristic of Sudan, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Libya. Not in comparison with a country's population, this name is the most popular in Sudan, Saudi Arabia, and Egypt.
| VARIANT | COUNTRY |
|---|---|
| ثلاثه | Yemen, Saudi Arabia, Egypt, Sudan, Libya |