| Language | Name | Code |
|---|---|---|
| Afrikaans | Maassluis | af |
| Arabic | ماسلاوس | ar |
| Asturian | Maassluis | ast |
| Belarusian | Маслёйс | be |
| Catalan | Maassluis | ca |
| Cebuano | Gemeente Maassluis | ceb |
| Danish | Maassluis | da |
| German | Maassluis | de |
| English | Maassluis | en |
| Esperanto | Maassluis | eo |
| Spanish | Maassluis | es |
| Basque | Maassluis | eu |
| Persian | ماساسلایس | fa |
| Finnish | Maassluis | fi |
| French | Maassluis | fr |
| Western Frisian | Maasslûs | fy |
| Irish | Maassluis | ga |
| Hebrew | מאסלז' | he |
| Hungarian | Maassluis | hu |
| Armenian | Մասսլաուս | hy |
| hyw | Մաասլուիս | hyw |
| Indonesian | Maassluis | id |
| Italian | Maassluis | it |
| Japanese | マーススラウス | ja |
| Javanese | Maassluis | jv |
| Korean | 마슬라위스 | ko |
| Kurdish | Maassluis | ku |
| Latin | Maassluis | la |
| Luxembourgish | Maassluis | lb |
| Limburgan | Maassluis | li |
| Lithuanian | Masleisas | lt |
| Macedonian | Маслејс | mk |
| Malay (macrolanguage) | Maassluis | ms |
| Norwegian Bokmål | Maassluis | nb |
| Low German | Maassluis | nds |
| nds-nl | Maassloes | nds-nl |
| Dutch | Maassluis | nl |
| Polish | Maassluis | pl |
| Portuguese | Maassluis | pt |
| Romanian | Maassluis | ro |
| Russian | Масслёйс | ru |
| sh | Maassluis | sh |
| Slovenian | Maassluis | sl |
| Albanian | Maassluis | sq |
| stq | Maassluis | stq |
| Swedish | Maassluis | sv |
| szl | Maassluis | szl |
| Turkish | Maassluis | tr |
| Ukrainian | Масслейс | uk |
| Urdu | ماسلویس | ur |
| vec | Maassluis | vec |
| Vietnamese | Maassluis | vi |
| Volapük | Maassluis | vo |
| war | Maassluis | war |
| zea | Maessluus | zea |
| Chinese | 马斯勒伊斯 | zh |
| zh-cn | 马斯勒伊斯 | zh-cn |
| zh-hans | 马斯勒伊斯 | zh-hans |
| zh-hant | 馬斯勒伊斯 | zh-hant |
| zh-hk | 馬斯勒伊斯 | zh-hk |