| Language | Name | Code |
|---|---|---|
| Arabic | غاغارين | ar |
| Azerbaijani | Qaqarin | az |
| Belarusian | Гагарын | be |
| be-tarask | Гжацак | be-tarask |
| Bulgarian | Гагарин | bg |
| Catalan | Gagarin | ca |
| Chechen | Гагарин | ce |
| Cebuano | Gagarin | ceb |
| crh | Gagarin (Smolensk vilâyeti) | crh |
| Czech | Gagarin | cs |
| Chuvash | Гагарин | cv |
| Danish | Gagarin | da |
| German | Gagarin | de |
| de-ch | Gagarin | de-ch |
| Modern Greek (1453-) | Γκαγκάριν | el |
| English | Gagarin | en |
| Esperanto | Gagarin | eo |
| Spanish | Gagarin, Oblast de Smolensk | es |
| Estonian | Gagarin | et |
| Basque | Gagarin | eu |
| Persian | گاگارین | fa |
| Finnish | Gagarin | fi |
| French | Gagarine | fr |
| Galician | Gagarin | gl |
| Croatian | Gagarin | hr |
| Upper Sorbian | Gagarin | hsb |
| Hungarian | Gagarin | hu |
| Armenian | Գագարին | hy |
| Italian | Gagarin | it |
| Japanese | ガガーリン | ja |
| Korean | 가가린 | ko |
| Lithuanian | Gagarinas | lt |
| nan | Gagarin (Smolensk Chiu) | nan |
| Norwegian Bokmål | Gagarin | nb |
| Dutch | Gagarin | nl |
| Norwegian Nynorsk | Gagarin | nn |
| Ossetian | Гагарин (Смоленсчы облæст) | os |
| Polish | Gagarin | pl |
| Portuguese | Gagarin | pt |
| pt-br | Gagarin | pt-br |
| Russian | Гагарин | ru |
| Slovak | Gagarin (mesto) | sk |
| Slovenian | Gagarin | sl |
| Serbian | Гагарин | sr |
| Swedish | Gagarin | sv |
| Tagalog | Gagarin | tl |
| Turkish | Gagarin | tr |
| Tatar | Гагарин | tt |
| Ukrainian | Гагарін | uk |
| vep | Gagarin | vep |
| Vietnamese | Gagarin, Smolensk | vi |
| war | Gagarin | war |
| xmf | გაგარინი | xmf |
| Chinese | 加加林 | zh |
| zh-hant | 加加林 | zh-hant |