| Language | Name | Code |
|---|---|---|
| Azerbaijani | Nikolayev | az |
| Belarusian | Мыкалаіў | be |
| be-tarask | Мікалаеў | be-tarask |
| Catalan | Mikolaiv | ca |
| Chechen | Николаев | ce |
| Cebuano | Mykolayiv | ceb |
| crh | Mıkolayiv | crh |
| crh-latn | Mıkolayiv | crh-latn |
| Czech | Mykolajiv | cs |
| Danish | Mykolajiv (Lviv oblast) | da |
| German | Mykolajiw | de |
| English | Mykolaiv | en |
| Esperanto | Mikolajiv | eo |
| Spanish | Mikolaiv | es |
| Estonian | Mõkolajiv (Lvivi oblast) | et |
| Basque | Mykolaiv | eu |
| Persian | میکولاییف | fa |
| Finnish | Mykolajiv | fi |
| French | Mykolaïv | fr |
| Upper Sorbian | Mykolajiw | hsb |
| Armenian | Նիկոլաև | hy |
| Italian | Mykolaïv | it |
| Japanese | ムィコラーイウ | ja |
| Georgian | ნიკოლაევი | ka |
| Latvian | Mikolajiva | lv |
| mhr | Николаев (ола, Львов вел) | mhr |
| Norwegian Bokmål | Mykolajiv | nb |
| Dutch | Mykolajiv | nl |
| Norwegian Nynorsk | Mykolajiv i Lviv oblast | nn |
| Polish | Mikołajów | pl |
| Portuguese | Mykolaiv (Leópolis) | pt |
| Romanian | Mîkolaiiv | ro |
| Russian | Николаев | ru |
| Slovenian | Mikolajiv | sl |
| Thai | มือกอลายิว | th |
| Tatar | Мыколаив | tt |
| Ukrainian | Миколаїв (Львівська область) | uk |
| Uzbek | Nikolaev, Lvov viloyati | uz |
| Vietnamese | Mykolaiv, tỉnh Lviv | vi |
| Chinese | 米科拉伊夫 | zh |