Family name Илеш (Illés 
, Илеш 
) , in all the world, is quite a rare last name. The last name Илеш is characteristic of Hungary, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Austria, where it is a rare surname. Also, Илеш is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Illés | Czechia, Austria, Hungary, Madagascar, Slovakia |
| Илеш | Kyrgyzstan, Kazakhstan, Russia |
Elia, Elias, Eliasz, Elie, Elies, Eliáš, Ellie, Elías, Ilech, Ilesh, Ileş, Ileš, Ilias, Ilie, Ilija, Iliá, Ilja, Illes, Ilya, Ilyesh, Élie, Ελίας, Ηλίας, Елиа, Илиан, Илиас, Илие, Илия, Илија, Илко, Иллеш, Илчо, Илья, Эли, Элиа, Элиас, Элиаш, Ілля, Ілья, Іліас, איליה, אילש, אליאס, إليا, إلياس, إيلي, إيليا, ایلیا, خوسيه, イリアス, イリエ, イリヤ, エリ, エリア, エリアス, エリー, 埃利, 埃利亚斯, and 艾利