Worldwide, Семаун (Semaun 
, Semaoen , Семаун 
) is a rare boy's first name. The first name Семаун is habitual in Indonesia, where it is a very rare masculine name, and India, where it is an extremely rare unisex name. More prevalently, Семаун is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Semaun | Indonesia, Brunei, Malaysia, United States, India |
| Semaoen | Indonesia |
| Семаун | Russia |