Family name Алеш (Aleš 
, Ales 
, Alesh 
) , around the world, is quite a common last name. The family name Алеш is characteristic of Slovenia, where it is quite a common surname, Czechia, where it is quite a rare surname, and Syria. In absolute terms, it most frequently occurs in Slovenia, the United States, and Czechia. More frequently, Алеш is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Aleš | Spain, Czechia, United States, Slovenia, Slovakia |
| Ales | Tanzania, Spain, Czechia, Slovenia, India |
| Alesh | Syria, Nigeria, United States, Egypt, India |
| Алеш | Kyrgyzstan, Kazakhstan, Ukraine, Russia |
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