Around the world, Алеш (Aleš 
, Ales 
, Alesh 
) is a common dominantly masculine, but seldom female first name. The first name Алеш is characteristic of Slovenia, where it is a common boy's name, Czechia, and Sierra Leone, where it is quite a common boy's name. Not in comparison with a country's population, this name is the most popular in Czechia, Slovenia, and India. Very seldom, Алеш is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Aleš | Czechia, Spain, United States, Slovenia, Slovakia |
| Ales | Czechia, Spain, Tanzania, India, Slovenia |
| Alesh | Syria, Egypt, Nigeria, United States, India |
| Алеш | Kyrgyzstan, Kazakhstan, Russia, Ukraine |
Alech, Aleix, Aleixo, Alejo, Aleksei, Aleksej, Aleksejs, Aleksey, Aleksi, Aleksij, Aleksy, Alesch, Alessio, Alexei, Alexej, Alexey, Alexius, Aleś, Alyesh, Alès, Oleksa, Oleksi, Oleksii, Oleksij, Oleksiy, Olekszij, Olexa, Olexii, Olexij, Olexiy, Алейс, Алексей, Алексейс, Алекси, Алексий, Алексы, Алесио, Алессио, Алесь, Алехо, Аляксей, Олекса, Олексий, Олексій, אלכסיי, اليكسي, ალექსი, アレクシー, アレクセイ, and アレス