| Language | Name | Code |
|---|---|---|
| Arabic | اونيتشا | ar |
| arz | اونيتشا | arz |
| Asturian | Onitsha | ast |
| Bulgarian | Онитша | bg |
| Bengali | ওনিৎসাঁ | bn |
| Catalan | Onitsha | ca |
| Cebuano | Onitsha | ceb |
| Czech | Onitsha | cs |
| Welsh | Onitsha | cy |
| Danish | Onitsha | da |
| German | Onitsha | de |
| Modern Greek (1453-) | Ονίτσα | el |
| English | Onitsha | en |
| en-gb | Onitsha | en-gb |
| Esperanto | Onitsha | eo |
| Spanish | Onitsha | es |
| Estonian | Onitsha | et |
| Persian | اونیتشا | fa |
| Fulah | Onitsha | ff |
| Finnish | Onitsha | fi |
| French | Onitsha | fr |
| Irish | Onitsha | ga |
| Gujarati | ઓનિષા | gu |
| Hausa | Onitsha | ha |
| Hebrew | אוניטשה | he |
| Hindi | ओनित्शा | hi |
| Hungarian | Onitsha | hu |
| Armenian | Օնիչա | hy |
| Indonesian | Onitsha | id |
| Igbo | Onịchạ | ig |
| Italian | Onitsha | it |
| Japanese | オニチャ | ja |
| Kannada | ಒನಿತ್ಶಾ | kn |
| Korean | 오니차 | ko |
| Lithuanian | Oniča | lt |
| Latvian | Oniča | lv |
| Malagasy | Onitsha | mg |
| Marathi | ओनिंशा | mr |
| Malay (macrolanguage) | Onitsha | ms |
| Norwegian Bokmål | Onitsha | nb |
| Dutch | Onitsha | nl |
| Norwegian Nynorsk | Onitsha | nn |
| pcm | Onitsha | pcm |
| Polish | Onitsha | pl |
| Portuguese | Onitsha | pt |
| pt-br | Onitsha | pt-br |
| Romanian | Onitsha | ro |
| Russian | Онича | ru |
| Sinhala | ඔනිට්ශා | si |
| Swedish | Onitsha | sv |
| Swahili (macrolanguage) | Onitsha | sw |
| Tamil | யோனிட்க்ஷ | ta |
| Telugu | వోనిట్ష | te |
| Thai | โอนิทชา | th |
| Turkish | Onitsha | tr |
| Ukrainian | Оніча | uk |
| Urdu | اونیتشا | ur |
| vec | Onitsha | vec |
| Vietnamese | Onitsha | vi |
| war | Onitsha | war |
| Yoruba | Onitsha | yo |
| Chinese | 奧尼查 | zh |
| zh-hans | 奥尼查 | zh-hans |
| zh-hant | 奧尼查 | zh-hant |
| zh-hk | 奧尼查 | zh-hk |