| Language | Name | Code |
|---|---|---|
| Afrikaans | Wilhelmshaven | af |
| Aragonese | Wilhelmshaven | an |
| ang | Willelmeshæfen | ang |
| Arabic | فيلهلمسهافن | ar |
| arz | ڤيلهيلمسهاڤين | arz |
| Asturian | Wilhelmshaven | ast |
| Azerbaijani | Vilhelmshaven | az |
| azb | ویلهمسهافن | azb |
| Bavarian | Wilhelmshaven | bar |
| Belarusian | Вільгельмсгафен | be |
| be-tarask | Вільгэльмсгафэн | be-tarask |
| Bulgarian | Вилхелмсхафен | bg |
| Breton | Wilhelmshaven | br |
| Catalan | Wilhelmshaven | ca |
| Chechen | Вильгельмсхафен | ce |
| Cebuano | Wilhelmshaven (kapital sa distrito) | ceb |
| Corsican | Wilhelmshaven | co |
| Czech | Wilhelmshaven | cs |
| Welsh | Wilhelmshaven | cy |
| Danish | Wilhelmshaven | da |
| German | Wilhelmshaven | de |
| de-at | Wilhelmshaven | de-at |
| de-ch | Wilhelmshaven | de-ch |
| Modern Greek (1453-) | Βιλχελμσχάφεν | el |
| English | Wilhelmshaven | en |
| en-ca | Wilhelmshaven | en-ca |
| en-gb | Wilhelmshaven | en-gb |
| en-us | Wilhelmshaven | en-us |
| Esperanto | Wilhelmshaven | eo |
| Spanish | Wilhelmshaven | es |
| Estonian | Wilhelmshaven | et |
| Basque | Wilhelmshaven | eu |
| Persian | ویلهمسهافن | fa |
| Finnish | Wilhelmshaven | fi |
| French | Wilhelmshaven | fr |
| frp | Wilhelmshaven | frp |
| frr | Wilhelmshuuwen | frr |
| fur | Wilhelmshaven | fur |
| Western Frisian | Wilhelmshaven | fy |
| Irish | Wilhelmshaven | ga |
| Scottish Gaelic | Wilhelmshaven | gd |
| Galician | Wilhelmshaven | gl |
| gsw | Wilhelmshaven | gsw |
| Hebrew | וילהלמסהאפן | he |
| Croatian | Wilhelmshaven | hr |
| Hungarian | Wilhelmshaven | hu |
| Armenian | Վիլհելմսհաֆեն | hy |
| Interlingua (International Auxiliary Language Association) | Wilhelmshaven | ia |
| Indonesian | Wilhelmshaven | id |
| Interlingue | Wilhelmshaven | ie |
| Ido | Wilhelmshaven | io |
| Icelandic | Wilhelmshaven | is |
| Italian | Wilhelmshaven | it |
| Japanese | ヴィルヘルムスハーフェン | ja |
| Kongo | Wilhelmshaven | kg |
| Korean | 빌헬름스하펜 | ko |
| Kurdish | Wilhelmshaven | ku |
| Latin | Wilhelmshaven | la |
| Luxembourgish | Wilhelmshaven | lb |
| Limburgan | Wilhelmshaven | li |
| lij | Wilhelmshaven | lij |
| lld | Wilhelmshaven | lld |
| Lithuanian | Vilhelmshafenas | lt |
| Latvian | Vilhelmshāfene | lv |
| mdf | Вильгэльмсгафэн | mdf |
| Malagasy | Wilhelmshaven | mg |
| min | Wilhelmshaven | min |
| Macedonian | Вилхелмсхафен | mk |
| Marathi | विल्हेम्सहाफेन | mr |
| Malay (macrolanguage) | Wilhelmshaven | ms |
| nap | Wilhelmshaven | nap |
| Norwegian Bokmål | Wilhelmshaven | nb |
| Low German | Willemshaven | nds |
| nds-nl | Wilhelmshaven | nds-nl |
| Dutch | Wilhelmshaven | nl |
| Norwegian Nynorsk | Wilhelmshaven | nn |
| Narom | Wilhelmshaven | nrm |
| Occitan (post 1500) | Wilhelmshaven | oc |
| Ossetian | Вильгельмсхафен | os |
| pcd | Wilhelmshaven | pcd |
| Polish | Wilhelmshaven | pl |
| pms | Wilhelmshaven | pms |
| Portuguese | Wilhelmshaven | pt |
| pt-br | Wilhelmshaven | pt-br |
| Romansh | Wilhelmshaven | rm |
| Romanian | Wilhelmshaven | ro |
| Russian | Вильгельмсхафен | ru |
| Sardinian | Wilhelmshaven | sc |
| Sicilian | Wilhelmshaven | scn |
| Scots | Wilhelmshaven | sco |
| sh | Wilhelmshaven | sh |
| Slovak | Wilhelmshaven | sk |
| Slovenian | Wilhelmshaven | sl |
| Serbian | Вилхелмсхафен | sr |
| sr-el | Wilhelmshaven | sr-el |
| stq | Wülmshoawen | stq |
| Swedish | Wilhelmshaven | sv |
| Swahili (macrolanguage) | Wilhelmshaven | sw |
| Thai | วิลเฮ็ลมส์ฮาเฟิน | th |
| Turkish | Wilhelmshaven | tr |
| Tatar | Вилһелмсһафен | tt |
| tum | Wilhelmshaven | tum |
| Ukrainian | Вільгельмсгафен | uk |
| Uzbek | Wilhelmshaven | uz |
| vec | Wilhelmshaven | vec |
| Vietnamese | Wilhelmshaven | vi |
| vls | Wilhelmshaven | vls |
| Volapük | Wilhelmshaven | vo |
| Walloon | Wilhelmshaven | wa |
| war | Wilhelmshaven | war |
| Wolof | Wilhelmshaven | wo |
| Wu Chinese | 威廉港 | wuu |
| Chinese | 威廉港 | zh |
| zh-hant | 威廉港 | zh-hant |
| Zulu | Wilhelmshaven | zu |