In the entire world, 赛尔 (Saer 
, Sile 
, Syre 
) is quite a common epicene first name. The forename 赛尔 is habitual in Aland Islands, where it is quite a common boy's name, Syria, where it is quite a rare male name, and Senegal. In absolute terms, it most frequently occurs in Nigeria, Syria, and Senegal. Also, 赛尔 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Saer | Senegal, China, Syria, United States, Nigeria |
| Sile | China, Ethiopia, Romania, United States, Nigeria |
| Syre | France, Syria, United States, Nigeria, Germany |
| 赛尔 | China |
Carl, Carles, Carlo, Carlos, Carolus, Charel, Charles, Karel, Karl, Karol, Karolis, Károly, Saier, Sail, Saile, Saill, Sair, Siarl, Карай, Карал, Караль, Карел, Карл, Карла, Карлас, Карлес, Карло, Карлос, Карлуш, Карой, Карол, Каролис, Кароль, Каролюс, Чарлз, Чарлс, Чарльз, Чарльз, Шарль, Шарл, Шарль, צ'ארלס, קארוי, קארל, קרל, קרלו, קרלוס, קרלס, שארל, تشارلز, شارل,