| Language | Name | Code |
|---|---|---|
| Afrikaans | Harlow | af |
| Arabic | هارلو | ar |
| arz | هارلو | arz |
| Asturian | Harlow | ast |
| Azerbaijani | Harlov | az |
| azb | هارلو | azb |
| Belarusian | Харлау | be |
| Bulgarian | Харлоу | bg |
| Bengali | হারলো | bn |
| Breton | Harlow | br |
| Catalan | Harlow | ca |
| Cebuano | Harlow | ceb |
| Czech | Harlow | cs |
| Welsh | Harlow | cy |
| Danish | Harlow | da |
| German | Harlow | de |
| English | Harlow | en |
| Esperanto | Harlow | eo |
| Spanish | Harlow | es |
| Basque | Harlow | eu |
| Persian | هارلو | fa |
| French | Harlow | fr |
| Irish | Harlow | ga |
| Gujarati | હાર્લો | gu |
| Hebrew | הרלאו | he |
| Armenian | Հարլոու | hy |
| Indonesian | Harlow | id |
| Italian | Harlow | it |
| Japanese | ハーロウ | ja |
| Kannada | ಹಾರ್ಲೋ | kn |
| Korean | 할로 | ko |
| Cornish | Harlow | kw |
| Latin | Herlaua | la |
| Luxembourgish | Harlow | lb |
| lld | Harlow | lld |
| Lithuanian | Harlou | lt |
| Latvian | Hārlova | lv |
| mdf | Гарлов | mdf |
| Macedonian | Харлоу | mk |
| nan | Harlow (koān) | nan |
| Norwegian Bokmål | Harlow | nb |
| Dutch | Harlow | nl |
| Norwegian Nynorsk | Harlow | nn |
| Polish | Harlow | pl |
| Portuguese | Harlow | pt |
| Romanian | Harlow | ro |
| Russian | Харлоу | ru |
| sh | Harlow | sh |
| Slovenian | Harlow | sl |
| Swedish | Harlow | sv |
| szl | Harlow | szl |
| Tamil | ஹார்லோவ் | ta |
| Telugu | హర్లౌ | te |
| Turkish | Harlow | tr |
| Tatar | Һарлоу | tt |
| Ukrainian | Гарлов | uk |
| Urdu | ہارلو | ur |
| Volapük | Harlow | vo |
| yue | 哈勞 | yue |
| Chinese | 哈洛 | zh |
| zh-cn | 哈洛 | zh-cn |
| zh-hans | 哈洛 | zh-hans |
| zh-hant | 哈洛 | zh-hant |