| EQUIVALENTS |
| ANCIENT GREEK: Eugenios, Eugenius |
| ARTHURIAN ROMANCE: Owain, Yvain, Ywain |
| BULGARIAN: Evgeni |
| CROATIAN: Eugen |
| CZECH: Eugen, Evžen |
| ENGLISH: Owen |
| FRENCH: Eugène |
| GALICIAN: Uxío |
| GERMAN: Eugen |
| ITALIAN: Eugenio |
| LATVIAN: Eižens, Jevgēņijs, Jevgeņijs |
| LITHUANIAN: Eugenijus |
| MACEDONIAN: Evgenij |
| POLISH: Eugeniusz |
| PORTUGUESE: Eugênio |
| ROMANIAN: Eugen |
| RUSSIAN: Evgeni, Evgeniy, Evgeny, Yevgeni, Yevgeniy, Yevgeny |
| SLOVAK: Eugen |
| SPANISH: Eugenio |
| UKRAINIAN: Yevgen, Yevhen, Yevheniy |
| WELSH MYTHOLOGY: Owain |
| WELSH: Owain, Owen |
|
| DIMINUTIVES AND SHORT FORMS |
| ENGLISH: Gene |
| RUSSIAN: Genya, Zhenya |
|
| FEMININE FORMS |
| AFRICAN AMERICAN: Lagina |
| ANCIENT GREEK: Eugeneia, Eugenia |
| BASQUE: Eukene |
| BULGARIAN: Evgenia, Evgeniya, Zhenya |
| ENGLISH: Eugenia, Geena, Gena, Genie, Gina |
| FRENCH: Eugénie |
| GALICIAN: Uxía |
| GREEK: Evgenia |
| ITALIAN: Eugenia |
| LATVIAN: Jevgēņija, Jevgeņija |
| MACEDONIAN: Evgenija |
| POLISH: Eugenia |
| PORTUGUESE: Eugênia |
| ROMANIAN: Eugenia |
| RUSSIAN: Evgenia, Evgeniya, Yevgeniya, Zhenya |
| SPANISH: Eugenia |
| UKRAINIAN: Yevheniya |
| WELSH: Owena |
|
| OTHER FORMS |
| AFRICAN AMERICAN: Tyrese |
| ANCIENT IRISH: Eógan |
| ENGLISH: Taryn, Ty, Tyron, Tyrone |
| HUNGARIAN: Jenci, Jenő |
| IRISH MYTHOLOGY: Eógan, Eoghan |
| IRISH: Eoghan, Owen |
| SCOTTISH: Eoghan, Euan, Ewan, Ewen |
|