| toskërishte | als-000 | Breton |
| ISO 639-3 Reference Names | art-289 | Breton |
| ISO 639-3 Print Names | art-290 | Breton |
| ISO 639-3 Inverted Names | art-291 | Breton |
| Ethnologue Primary Language Names | art-323 | Breton |
| Glottolog Languoid Names | art-326 | Breton |
| Ethnologue Language Names | art-330 | Breton |
| brezhoneg | bre-000 | Breton |
| català | cat-000 | Breton |
| čeština | ces-000 | Breton |
| Middle Cornish | cnx-000 | Breton |
| Kernowek | cor-000 | Breton |
| dansk | dan-000 | Breton |
| English | eng-000 | Breton |
| Esperanto | epo-000 | Breton |
| Wikang Filipino | fil-000 | Breton |
| français | fra-000 | Breton |
| Romant | fro-000 | Breton |
| galego | glg-000 | Breton |
| magyar | hun-000 | Breton |
| bahasa Indonesia | ind-000 | Breton |
| Malti | mlt-000 | Breton |
| Nederlands | nld-000 | Breton |
| bokmål | nob-000 | Breton |
| occitan | oci-000 | Breton |
| Old Cornish | oco-000 | Breton |
| Amanung Sisuan | pam-000 | Breton |
| română | ron-000 | Breton |
| Sesotho | sot-000 | Breton |
| español | spa-000 | Breton |
| svenska | swe-000 | Breton |
| Tagalog | tgl-000 | Breton |
| Türkçe | tur-000 | Breton |
| isiXhosa | xho-000 | Breton |
| Bahasa Malaysia | zsm-000 | Breton |
| Gaeilge | gle-000 | Bretón |
| galego | glg-000 | Bretón |
| español | spa-000 | Bretón |
| Nourmaund | xno-000 | Bréton |
| ISO 12620 | art-317 | breton |
| brezhoneg | bre-000 | breton |
| čeština | ces-000 | breton |
| English | eng-000 | breton |
| français | fra-000 | breton |
| Romant | fro-000 | breton |
| lenga arpitana | frp-000 | breton |
| lenghe furlane | fur-000 | breton |
| magyar | hun-000 | breton |
| interlingua | ina-000 | breton |
| italiano | ita-000 | breton |
| lingála | lin-000 | breton |
| occitan | oci-000 | breton |
| lenga piemontèisa | pms-000 | breton |
| lingua rumantscha | roh-000 | breton |
| română | ron-000 | breton |
| español | spa-000 | breton |
| svenska | swe-000 | breton |
| oʻzbek | uzn-000 | breton |
| asturianu | ast-000 | bretón |
| galego | glg-000 | bretón |
| español | spa-000 | bretón |
| Uyghurche | uig-001 | bréton |
| Ido | ido-000 | Bretona |
| română | ron-000 | Bretonă |
| English | eng-000 | Bretoña |
| galego | glg-000 | Bretoña |
| asturianu | ast-000 | bretona |
| català | cat-000 | bretona |
| Esperanto | epo-000 | bretona |
| lingua rumantscha | roh-000 | bretona |
| español | spa-000 | bretona |
| română | ron-000 | bretonă |
| español | spa-000 | bretóna |
| Srpskohrvatski | hbs-001 | Bretonac |
| bosanski | bos-000 | bretonac |
| yn Ghaelg | glv-000 | Bretonagh |
| davvisámegiella | sme-000 | Bretonagiella |
| davvisámegiella | sme-000 | bretonagiella |
| Esperanto | epo-000 | bretona lingvo |
| lietuvių | lit-000 | bretonas |
| English | eng-000 | Breton bagpipes |
| English | eng-000 | Breton black pied cattle |
| Romant | fro-000 | breton - brecton |
| brezhoneg | bre-000 | Breton Bretoned |
| azərbaycanca | azj-000 | Bretonca |
| Türkçe | tur-000 | Bretonca |
| azərbaycanca | azj-000 | bretonca |
| türkmençe | tuk-000 | bretonça |
| oʻzbek | uzn-000 | bretoncha |
| Uyghurche | uig-001 | brétonche |
| slovenčina | slk-000 | bretónčina |
| English | eng-000 | Breton Communist Party |
| français | fra-000 | breton cornouaillais |
| polski | pol-000 | Bretończycy |
| polski | pol-000 | Bretończyk |
| español | spa-000 | bretón de versa |
| Türkçe | tur-000 | Breton Dili |
| English | eng-000 | Breton dwarf |
| Deutsch | deu-000 | Bretone |
| italiano | ita-000 | Bretone |
| Fräiske Sproake | stq-000 | Bretone |
| Deutsch | deu-000 | bretone |
| Esperanto | epo-000 | bretone |
| italiano | ita-000 | bretone |
| italiano | ita-000 | brètone |
| lengua lígure | lij-000 | brétone |
| Zeneize | lij-002 | brétone |
| čeština | ces-000 | Bretonec |
| slovenščina | slv-000 | Bretonec |
| slovenčina | slk-000 | Bretónec |
| brezhoneg | bre-000 | Bretoned |
| English | eng-000 | Breton edging |
| occitan | oci-000 | bretonejar |
| Middle Cornish | cnx-000 | Bretonek |
| Kernowek | cor-000 | Bretonek |
| Old Cornish | oco-000 | Bretonek |
| Middle Cornish | cnx-000 | bretonek |
| Kernowek | cor-000 | bretonek |
| Kurmancî | kmr-000 | bretonek |
| Old Cornish | oco-000 | bretonek |
| svenska | swe-000 | bretoner |
| català | cat-000 | Bretones |
| Middle Cornish | cnx-000 | Bretones |
| Kernowek | cor-000 | Bretones |
| Esperanto | epo-000 | Bretones |
| Old Cornish | oco-000 | Bretones |
| español | spa-000 | Bretones |
| español | spa-000 | bretones |
| Lëtzebuergesch | ltz-000 | Bretonesch |
| brezhoneg | bre-000 | Bretonez |
| brezhoneg | bre-000 | Bretonez Bretonezed |
| brezhoneg | bre-000 | Bretonezed |
| Ɛʋɛgbɛ | ewe-000 | bretongbe |
| Bân-lâm-gú | nan-005 | Breton Hái-phīn Tó |
| English | eng-000 | breton horse |
| suomi | fin-000 | Bretoni |
| èdè Yorùbá | yor-000 | Bretoni |
| suomi | fin-000 | bretoni |
| Kurmancî | kmr-000 | bretonî |
| Ido | ido-000 | Bretonia |
| Romániço | art-013 | bretonia |
| English | eng-000 | Bretonian |
| English | eng-000 | bretonian |
| Romániço | art-013 | bretoniana |
| English | eng-000 | Bretonian orogeny |
| English | eng-000 | Bretonian strata |
| English | eng-000 | bretonica peluda |
| English | eng-000 | bretonica prieta |
| Universal Networking Language | art-253 | breton(icl>brythonic>abstract_thing,iof>language) |
| Universal Networking Language | art-253 | breton(icl>frenchman>person) |
| English | eng-000 | Bretonic movement |
| suomi | fin-000 | bretonilainen |
| suomi | fin-000 | bretonilainen runoromaani |
| Deutsch | deu-000 | Bretonin |
| Esperanto | epo-000 | bretonino |
| Esperanto | epo-000 | Bretonio |
| toskërishte | als-000 | Bretonisch |
| Deutsch | deu-000 | Bretonisch |
| Pennsilfaanisch Deitsch | pdc-000 | Bretonisch |
| Deutsch | deu-000 | bretonisch |
| Deutsch | deu-000 | Bretonische Flagge |
| Deutsch | deu-000 | Bretonische Mark |
| Deutsch | deu-000 | Bretonische Musik |
| Deutsch | deu-000 | Bretonischer Erbfolgekrieg |
| Deutsch | deu-000 | bretonischer Roman |
| Deutsch | deu-000 | Bretonische Sprache |
| Deutsch | deu-000 | bretonische Sprache |
| toskërishte | als-000 | bretonisht |
| toskërishte | als-000 | bretonishte |
| Fräiske Sproake | stq-000 | Bretonisk |
| Srpskohrvatski | hbs-001 | Bretonka |
| polski | pol-000 | Bretonka |
| slovenščina | slv-000 | Bretonka |
| polski | pol-000 | Bretonki |
| English | eng-000 | Breton lace |
| English | eng-000 | Breton language |
| Uyghurche | uig-001 | brétonlar |
| English | eng-000 | breton lay |
| Scots leid | sco-000 | Breton leid |
| français | fra-000 | breton léonard |
| ISO 639-3 Inverted Names | art-291 | Breton, Middle |
| français | fra-000 | breton moyen |
| français | fra-000 | bretonnant |
| English | eng-000 | Breton National Committee |
| English | eng-000 | Breton National Party |
| français | fra-000 | Bretonne |
| français | fra-000 | bretonne |
| English | eng-000 | bretonne net |
| français | fra-000 | bretonne pie noir |
| English | eng-000 | Bretonnia |
| italiano | ita-000 | Bretonnia |
| polski | pol-000 | Bretonnia |
| français | fra-000 | Bretonnie |
| Deutsch | deu-000 | Bretonnières |
| English | eng-000 | Bretonnières |
| français | fra-000 | Bretonnières |
| italiano | ita-000 | Bretonnières |
| Nederlands | nld-000 | Bretonnières |
| lingua rumantscha | roh-000 | Bretonnières |
| Volapük | vol-000 | Bretonnières |
| français | fra-000 | bretonnisation |
| français | fra-000 | bretonniser |
| français | fra-000 | bretonnité |
| français | fra-000 | bretonnitude |
| Ido | ido-000 | Bretono |
| Romániço | art-013 | bretono |
| Esperanto | epo-000 | bretono |
| ISO 639-3 Inverted Names | art-291 | Breton, Old |
| mokshenj kalj | mdf-001 | bretonon' |
| English | eng-000 | Breton Regionalist Union |
| Afrikaans | afr-000 | Bretons |
| English | eng-000 | Bretons |
| français | fra-000 | Bretons |
| Nederlands | nld-000 | Bretons |
| galego | glg-000 | Bretóns |
| hornjoserbšćina | hsb-000 | Bretonšćina |
| Serbšćina | wen-000 | Bretonšćina |
| dolnoserbska reč | dsb-000 | bretonšćina |
| hornjoserbšćina | hsb-000 | bretonšćina |
| slovenščina | slv-000 | bretonščina |
| kaszëbsczi jãzëk | csb-000 | bretońsczi |
| Nederlands | nld-000 | Bretonse |
| Uyghurche | uig-001 | bréton sériyisi |
| English | eng-000 | Breton shirt |
| Runa Simi | que-000 | Breton Simi |
| français | fra-000 | Bretons insulaires |
| dansk | dan-000 | Bretonsk |
| Frysk | fry-000 | Bretonsk |
| bokmål | nob-000 | Bretonsk |
| dansk | dan-000 | bretonsk |
| nynorsk | nno-000 | bretonsk |
| bokmål | nob-000 | bretonsk |
| svenska | swe-000 | bretonsk |
| íslenska | isl-000 | Bretónska |
| íslenska | isl-000 | bretonska |
| slovenščina | slv-000 | bretonska |
| svenska | swe-000 | bretonska |
| polski | pol-000 | bretońska |
| íslenska | isl-000 | bretónska |
| biełaruskaja łacinka | bel-002 | bretonskaja |
| svenska | swe-000 | Bretonska tronföljdskriget |
| polski | pol-000 | Bretońska Wikipedia |
| Srpskohrvatski | hbs-001 | Bretonska Wikipedija |
| dansk | dan-000 | Bretonsk Demokratisk Sammenslutning |
| hrvatski | hrv-000 | Bretonski |
| srpski | srp-001 | Bretonski |
| polski | pol-000 | Bretoński |
| bosanski | bos-000 | bretonski |
| Srpskohrvatski | hbs-001 | bretonski |
| hrvatski | hrv-000 | bretonski |
| russkij | rus-001 | bretonski |
| slovenščina | slv-000 | bretonski |
| srpski | srp-001 | bretonski |
| polski | pol-000 | bretoński |
| polski | pol-000 | bretońskie |
| hrvatski | hrv-000 | bretonski španijel |
| čeština | ces-000 | Bretoňsko |
| slovenčina | slk-000 | Bretónsko |
| slovenščina | slv-000 | bretonsko |
| svenska | swe-000 | bretonsk roman |
| nynorsk | nno-000 | bretonsk språk |
| føroyskt | fao-000 | bretonskt |
| čeština | ces-000 | Bretonský |
| čeština | ces-000 | Bretoňský |
| slovenčina | slk-000 | Bretónsky |
| čeština | ces-000 | bretonský |
| hanácké | ces-002 | bretonský |
| slovenčina | slk-000 | bretonský |
| čeština | ces-000 | bretoňský |
| slovenčina | slk-000 | bretónsky |
| slovenčina | slk-000 | bretónsky dlhosrstý stavač |
| English | eng-000 | Breton’s law |
| English | eng-000 | Breton Social-National Workers’ Movement |
| Nederlands | nld-000 | Bretons spikkeldikkopje |
| Nederlands | nld-000 | bretons spikkeldikkopje |
| čeština | ces-000 | Bretonština |
| čeština | ces-000 | bretonština |
| čeština | ces-000 | bretoňština |
| Uyghurche | uig-001 | bréton tagh yasash herikiti |
| Uyghurche | uig-001 | bréton tili |
| English | eng-000 | Breton top |
| français | fra-000 | breton trégorrois |
| lietuvių | lit-000 | Bretonų |
| latviešu | lvs-000 | Bretoņu |
| lietuvių | lit-000 | bretonų |
| latviešu | lvs-000 | bretoņu |
| Esperanto | epo-000 | Bretonujkaba Insulo |
| Esperanto | epo-000 | Bretonujo |
| Esperanto | epo-000 | bretonujo |
| lietuvių | lit-000 | bretonų kalba |
| latviešu | lvs-000 | bretoņu valoda |
| français | fra-000 | breton vannetais |
| latviešu | lvs-000 | Bretonvudsas vienošanās |
| hrvatski | hrv-000 | Bretonvudski monetarni sustav |
| English | eng-000 | Breton War of Succession |
| English | eng-000 | Breton Wikipedia |
| English | eng-000 | Breton Woods Agreement |
| English | eng-000 | Breton-Woods monetary system |
| Türkçe | tur-000 | Bretonyalı |
| Uyghurche | uig-001 | bréton yer qatlimi |
| eesti | ekk-000 | bretoon |
| eesti | ekk-000 | Bretooni |
| eesti | ekk-000 | bretooni |
| eesti | ekk-000 | bretooni keel |
| eesti | ekk-000 | bretoonlanna |
| Plattdüütsch | nds-000 | Bretoonsch |
| Plattdüütsch-Neddersassisch | nds-002 | Bretoonsch |
| Plattdüütsch | nds-000 | bretoonsch |
| Plattdüütsch-Neddersassisch | nds-002 | bretoonsch |
| English | eng-000 | Bretos |
| français | fra-000 | Bretos |
| español | spa-000 | Bretos |
| provençau, nòrma mistralenca | oci-002 | bretouneja |
| Esperanto | epo-000 | bretovelado |
| Esperanto | epo-000 | bretovelistino |
| Esperanto | epo-000 | bretovelisto |
| Esperanto | epo-000 | bretovelo |
| English | eng-000 | Brętowo |
| polski | pol-000 | Brętowo |
| Oksapmin | opm-000 | bret pipirpät hän |
| Esperanto | epo-000 | bretprovizi |
| Uyghurche | uig-001 | bret qilmaq |
| eesti | ekk-000 | bretša |
| English | eng-000 | Bret Saberhagen |
| Deutsch | deu-000 | Bretsch |
| English | eng-000 | Bretsch |
| Esperanto | epo-000 | Bretsch |
| Nederlands | nld-000 | Bretsch |
| română | ron-000 | Bretsch |
| Volapük | vol-000 | Bretsch |
| Lëtzebuergesch | ltz-000 | Brëtsch |
| Südbadisch | gsw-003 | Bretschel |
| Sidtirolarisch | bar-002 | bretschele mochn |
| Südbadisch | gsw-003 | Bretschelibueb |
| Südbadisch | gsw-003 | Bretschle |
| Limburgs | lim-000 | bretsetig |
| latviešu | lvs-000 | Brets Hals |