| English | eng-000 |
| Willis | |
| luenga aragonesa | arg-000 | Guillén |
| Universal Networking Language | art-253 | Willis |
| Universal Networking Language | art-253 | willis(iof>neurologist>thing) |
| brezhoneg | bre-000 | Gwilherm |
| català | cat-000 | Guillem |
| català | cat-000 | Thomas Willis |
| čeština | ces-000 | Vilém |
| Hànyǔ | cmn-003 | Wēilián |
| Cymraeg | cym-000 | Gwil |
| Cymraeg | cym-000 | Gwilim |
| Cymraeg | cym-000 | Gwillym |
| Cymraeg | cym-000 | Gwilym |
| dansk | dan-000 | Willum |
| Deutsch | deu-000 | Wilhelm |
| Ellinika | ell-003 | Gouliélmos |
| English | eng-000 | Bill |
| English | eng-000 | Thomas Willis |
| English | eng-000 | Wilkie |
| English | eng-000 | Will |
| English | eng-000 | William |
| Esperanto | epo-000 | Vilhelmo |
| Esperanto | epo-000 | Vilĉjo |
| føroyskt | fao-000 | Vilhjálmur |
| suomi | fin-000 | Thomas Willis |
| suomi | fin-000 | Vilhe |
| suomi | fin-000 | Vilhelmi |
| suomi | fin-000 | Vilho |
| suomi | fin-000 | Viljami |
| suomi | fin-000 | Viljo |
| suomi | fin-000 | Ville |
| suomi | fin-000 | Wilhe |
| suomi | fin-000 | Willis |
| français | fra-000 | Guillaume |
| Frysk | fry-000 | Jelle |
| Gàidhlig | gla-000 | Uilleam |
| Gaeilge | gle-000 | Liam |
| Gaeilge | gle-000 | Uilleag |
| Gaeilge | gle-000 | Uilliam |
| Gaeilge | gle-000 | Ulick |
| galego | glg-000 | Thomas Willis |
| galego | glg-000 | Willis |
| yn Ghaelg | glv-000 | Illiam |
| עברית | heb-000 | ויליאם |
| हिन्दी | hin-000 | विलिस |
| hrvatski | hrv-000 | Vilim |
| magyar | hun-000 | Vilmos |
| bahasa Indonesia | ind-000 | Thomas Willis |
| bahasa Indonesia | ind-000 | Willis |
| íslenska | isl-000 | Vilhjálmur |
| italiano | ita-000 | Guglielmo |
| 日本語 | jpn-000 | ウィリス諸島 |
| Nihongo | jpn-001 | Viruherumu |
| latine | lat-000 | Guilielmus |
| lengua lumbarda | lmo-000 | Willis |
| latviešu | lvs-000 | Vilhelms |
| latviešu | lvs-000 | Vilis |
| македонски | mkd-000 | Вилис |
| reo Māori | mri-000 | Wiremu |
| Plattdüütsch-Neddersassisch | nds-002 | Willken |
| Plattdüütsch-Neddersassisch | nds-002 | Willm |
| Plattdüütsch-Neddersassisch | nds-002 | Wilm |
| Nederlands | nld-000 | Willem |
| Nederlands | nld-000 | Willis |
| bokmål | nob-000 | Vellum |
| bokmål | nob-000 | Vilhelm |
| bokmål | nob-000 | Viljen |
| bokmål | nob-000 | Villem |
| bokmål | nob-000 | Villiam |
| bokmål | nob-000 | Villum |
| norskr | non-000 | Vilhjalmr |
| norskr | non-000 | Vilhjamr |
| occitan | oci-000 | Guilhèm |
| português | por-000 | Guilherme |
| português | por-000 | Thomas Willis |
| português | por-000 | Thomas willis |
| русский | rus-000 | Уиллис |
| russkij | rus-001 | Vilʹgelʹm |
| slovenčina | slk-000 | Viliam |
| slovenščina | slv-000 | Vili |
| slovenščina | slv-000 | Viljem |
| slovenščina | slv-000 | Vilko |
| español | spa-000 | Guillermo |
| español | spa-000 | Thomas Willis |
| српски | srp-000 | Вилим |
| srpski | srp-001 | Vilim |
| svenska | swe-000 | Velam |
| svenska | swe-000 | Vilhelm |
| svenska | swe-000 | Viljam |
| svenska | swe-000 | Villam |
| ภาษาไทย | tha-000 | วิลลิส |
| ภาษาไทย | tha-000 | โทมัส วิลลิส |
| Vlaams | vls-000 | Guildhelm |
| Volapük | vol-000 | Willis |
| ייִדיש | ydd-000 | װֶעלװֶעל |
| Bahasa Malaysia | zsm-000 | Thomas Willis |
| Bahasa Malaysia | zsm-000 | Willis |