| Language | Name | Code |
|---|---|---|
| Afrikaans | Guelph | af |
| Arabic | غويلف | ar |
| arz | جويلف | arz |
| Asturian | Guelph | ast |
| Azerbaijani | Quelf | az |
| azb | گوئلف | azb |
| Belarusian | Гуэлф | be |
| be-tarask | Гўэлф | be-tarask |
| Bulgarian | Гуелф | bg |
| Bengali | গোয়েলফ | bn |
| Catalan | Guelph | ca |
| Cebuano | Guelph | ceb |
| Czech | Guelph | cs |
| Welsh | Guelph | cy |
| Danish | Guelph | da |
| German | Guelph | de |
| de-ch | Guelph | de-ch |
| diq | Guelph | diq |
| Modern Greek (1453-) | Γκουέλφ | el |
| English | Guelph | en |
| en-ca | Guelph | en-ca |
| en-gb | Guelph | en-gb |
| Esperanto | Guelph | eo |
| Spanish | Guelph | es |
| Estonian | Guelph | et |
| Persian | گولف | fa |
| Finnish | Guelph | fi |
| French | Guelph | fr |
| Western Frisian | Guelph | fy |
| Irish | Guelph | ga |
| Gujarati | ગુએલ્ફ | gu |
| Hausa | Guelph | ha |
| Hebrew | גואלף | he |
| Hindi | गुएल्फ़ | hi |
| Hungarian | Guelph | hu |
| Armenian | Գուելֆ | hy |
| Indonesian | Guelph | id |
| Ido | Guelph | io |
| Italian | Guelph | it |
| Japanese | ゲルフ | ja |
| Kannada | ಗುಯೆಲ್ಫ್ | kn |
| Korean | 궬프 | ko |
| Kurdish | Guelph | ku |
| Luxembourgish | Guelph | lb |
| lfn | Guelph | lfn |
| Lithuanian | Guelfas | lt |
| Latvian | Gvelfa | lv |
| Malagasy | Guelph | mg |
| Marathi | गुएल्फ | mr |
| Malay (macrolanguage) | Guelph | ms |
| Norwegian Bokmål | Guelph | nb |
| Dutch | Guelph | nl |
| Norwegian Nynorsk | Guelph | nn |
| Polish | Guelph | pl |
| pnb | گیولف | pnb |
| Portuguese | Guelph | pt |
| pt-br | Guelph | pt-br |
| Russian | Гуэлф | ru |
| sh | Guelph | sh |
| Sinhala | ගෙල්ෆ් | si |
| Slovenian | Guelph | sl |
| Albanian | Guelph | sq |
| Serbian | Гвелф | sr |
| sr-ec | Гвелф | sr-ec |
| sr-el | Gvelf | sr-el |
| Swedish | Guelph | sv |
| Swahili (macrolanguage) | Guelph | sw |
| Tamil | குயெல்ப் | ta |
| Telugu | గుయేల్ఫ్ | te |
| Thai | กวัฟล์ | th |
| Tagalog | Guelph | tl |
| Turkish | Guelph | tr |
| Tatar | Гвелф | tt |
| Ukrainian | Ґвелф | uk |
| Urdu | گویلف | ur |
| vec | Guelph | vec |
| Vietnamese | Guelph | vi |
| Volapük | Guelph | vo |
| war | Guelph | war |
| Chinese | 貴湖 | zh |
| zh-cn | 圭尔夫 | zh-cn |
| zh-hans | 圭尔夫 | zh-hans |
| zh-hant | 貴湖 | zh-hant |
| zh-hk | 貴湖 | zh-hk |