Eugene is a common (masculine) first name that comes from the Greek εὐγενής (eugenēs), "noble", literally "well-born", from εὖ (eu), "well" and γένος (genos), "race, stock, kin". Gene is a common shortened form. The feminine variant is Eugenia or Eugénie.
Male foreign-language variants include:
| Belarusian | Jaugen/Yauhen (Яўген) |
| Bulgarian | Евгени (Evgeni) |
| Catalan | Eugeni |
| Czech | Evžen |
| Dutch | Eugeen |
| Esperanto | Eŭgeno |
| French | Eugène, Yvain |
| Galician | Uxío |
| German | Eugen |
| Greek | Ευγένιος (Evgénios) |
| Hungarian | Jenő |
| Hebrew | יבגני (transliterated as Evgeni) |
| Hindi | Ugine, Ujin, Yujin, Ugister |
| Irish Gaelic | Eóghan, (Eóġan pre 1948) |
| Italian | Eugenio |
| Korean | Yu-jin (유진) |
| Latin | Eugenius |
| Latvian | Eugenijs/Eižens |
| Lithuanian | Eugenijus |
| Macedonian | Евгение (Evgenie, Yevgenie) |
| Occitan | Eugèni |
| Romanian | Eugen, Eugeniu |
| Piedmontese | Genio |
| Polish | Eugeniusz |
| Portuguese | Eugênio |
| Russian | Евгений (transliterated as Evgeni, Evgeniy, Evgeny, Eugeny, Eugeniy, Ievgeny, Yevgeny, Yevgeni, Yevgeniy) |
| Scottish Gaelic | Eoghann, Ewan, Ewan, Euan |
| Serbian | Еуген (Eugen) |
| Sicilian | Eugeniu |
| Spanish | Eugenio |
| Swedish | Eugen |
| Turkish | Evgen |
| Ukrainian | Євген (transliterated as Yevhen, Yevgen, Ievgen) |
| Welsh | Owain, Owen, Ouein, Oen, Ewein, Ywein/Ywain, Yuein, |
| Buryat | Ифгеени |