| ISO 639-3 Reference Names | art-289 | Efai |
| ISO 639-3 Print Names | art-290 | Efai |
| ISO 639-3 Inverted Names | art-291 | Efai |
| Ethnologue Primary Language Names | art-323 | Efai |
| Glottolog Languoid Names | art-326 | Efai |
| Ethnologue Language Names | art-330 | Efai |
| Efai | efa-000 | Efai |
| English | eng-000 | Efai |
| Sihan | snr-000 | Efai |
| Michif | crg-000 | e* fai |
| Kuni | kse-000 | efai |
| Bu | lmx-000 | éfaì |
| Glottocode | art-327 | efai1241 |
| ‘E‘o ‘Kenata | mrq-000 | e fai na |
| fiteny Malagasy | plt-000 | efaina |
| ‘E‘o ‘Kenata | mrq-000 | e fainu |
| Carolinian | cal-000 | e-faisúl |
| gagana faʻa Samoa | smo-000 | e faitau |
| Kampong Baru | kzm-000 | efaito |
| Kwamera | tnk-000 | ef|aiuk |
| teny malagasy | mlg-000 | efajato |
| fiteny Malagasy | plt-000 | efa-joro |
| fiteny Malagasy | plt-000 | efajoro |
| fiteny Malagasy | plt-000 | efajorondemaka |
| Merina | plt-001 | èfaka |
| Wampar | lbq-000 | efakana |
| holupaka | bef-000 | efa kosa |
| bokmål | nob-000 | EFaktura |
| English | eng-000 | eFaktura |
| català | cat-000 | Ef’al |
| toskërishte | als-000 | e fal |
| lisân-ı Osmânî | ota-001 | ef’âl |
| íslenska | isl-000 | efalaus |
| íslenska | isl-000 | efalauss |
| íslenska | isl-000 | efalaust |
| fiteny Malagasy | plt-000 | efa lehibe |
| Deutsch | deu-000 | Efalizumab |
| English | eng-000 | Efalizumab |
| polski | pol-000 | Efalizumab |
| Cymraeg | cym-000 | efallai |
| English | eng-000 | Ef’al Regional Council |
| italiano | ita-000 | e falso |
| Kuni | kse-000 | efaluba |
| Saamia | lsm-000 | efalula |
| Bu | lmx-000 | éfām |
| Bu | lmx-000 | èfàmǎ |
| English | eng-000 | EFA - Making It Work |
| français | fra-000 | EFA - Making It Work |
| íslenska | isl-000 | efamál |
| Kamino | btu-003 | efamau |
| Lunyole | nuj-000 | efambaafu |
| èdè Yorùbá | yor-000 | ẹ́fàmẹ̀ẹ̀fà |
| fiteny Malagasy | plt-000 | efamira |
| fiteny Malagasy | plt-000 | efamìra |
| Kombai | tyn-000 | efa-mo |
| Middle Cornish | cnx-000 | efan |
| Kernowek | cor-000 | efan |
| Old Cornish | oco-000 | efan |
| udin muz | udi-000 | efan |
| manju gisun | mnc-000 | efän |
| Hànyǔ | cmn-003 | è fàn |
| Hànyǔ | cmn-003 | èfàn |
| Hànyǔ | cmn-003 | èfán |
| Bontoc—Guinaang | lbk-002 | éfan |
| èdè Yaraba | yor-001 | ẹfan |
| Igala | igl-000 | é-fa nà |
| fiteny Malagasy | plt-000 | efa nampiasaina |
| Lunyole | nuj-000 | efanana |
| Lubukusu | bxk-000 | e- fanani |
| lenga arpitana | frp-000 | éfanar |
| langue picarde | pcd-000 | éfânce |
| Middle Cornish | cnx-000 | efander |
| Kernowek | cor-000 | efander |
| Old Cornish | oco-000 | efander |
| English | eng-000 | Efan Ekoku |
| polski | pol-000 | Efan Ekoku |
| svenska | swe-000 | Efan Ekoku |
| Mbunda | zmp-000 | efanesu |
| Hànyǔ | cmn-003 | è fán fǎ |
| Hànyǔ | cmn-003 | èfànfàn |
| Hànyǔ | cmn-003 | èfáng |
| Hànyǔ | cmn-003 | é fāng |
| Hànyǔ | cmn-003 | éfáng |
| Hànyǔ | cmn-003 | ēfáng |
| ewondo | ewo-000 | efanga |
| Südbadisch | gsw-003 | efange |
| Shekgalagari | xkv-000 | efangele |
| Middle Cornish | cnx-000 | efani |
| Kernowek | cor-000 | efani |
| Old Cornish | oco-000 | efani |
| fiteny Malagasy | plt-000 | efa niasa |
| lingaedje walon | wln-000 | efant |
| lingaedje walon | wln-000 | èfant |
| langue picarde | pcd-000 | éfant |
| langue picarde | pcd-000 | éfânt |
| langue picarde | pcd-000 | éfantemé |
| langue picarde | pcd-000 | éfanter |
| langue picarde | pcd-000 | éfantîn |
| langue picarde | pcd-000 | éfantiyâg’ |
| Ido | ido-000 | efantyunulo |
| Middle Cornish | cnx-000 | efanvos |
| Kernowek | cor-000 | efanvos |
| Old Cornish | oco-000 | efanvos |
| Gbari | gby-000 | efanya |
| Middle Cornish | cnx-000 | efanyans |
| Kernowek | cor-000 | efanyans |
| Old Cornish | oco-000 | efanyans |
| English | eng-000 | EF-AOD process |
| Bikele | biw-001 | è[fàp |
| teny malagasy | mlg-000 | efa-polo |
| fiteny Malagasy | plt-000 | efa-polo |
| suomi | fin-000 | efapsi |
| Khunsari | kfm-000 | efâqa |
| Satawalese | stw-000 | efar |
| Ngaibor | txn-001 | efar |
| Mpongwe | mye-000 | efara |
| Satawalese | stw-000 | efara-(n) |
| Sizaki | ikz-001 | efarasi |
| Oluluyia | luy-000 | efarasi |
| Nyambo | now-000 | efarasi |
| Zinza | zin-000 | efarasi |
| langue picarde | pcd-000 | éfardèleu |
| Fate | erk-000 | efare |
| Kurmancî | kmr-000 | efare |
| Yawiyo | ybx-000 | efarea |
| reo Tahiti | tah-000 | E fãrerei ã tãtou |
| èdè Yorùbá | yor-000 | ẹ̀fárí |
| èdè Yorùbá | yor-000 | ẹ̀fárí kodoro |
| Merina | plt-001 | efàr-ina |
| langue picarde | pcd-000 | éfarineu |
| Cymraeg | cym-000 | Efaristws |
| Tafaghist | taq-000 | efarket |
| Uyghurche | uig-001 | éfarmoniye |
| Ellinika | ell-003 | efarmózo |
| Kernowek | cor-000 | efarn |
| Kernowek | cor-000 | efarnek |
| lenga arpitana | frp-000 | éfaroçhia |
| lenga arpitana | frp-000 | éfaroçhiér |
| kreyòl ayisyen | hat-000 | efarouche |
| lenga arpitana | frp-000 | éfartelyér |
| Interlingue | ile-000 | efaruchar |
| Interlingue | ile-000 | efaruchar se |
| morisyin | mfe-000 | efas |
| manju gisun | mnc-000 | efäsä- |
| manju gisun | mnc-000 | efäšä- |
| íslenska | isl-000 | efasamur |
| Ladino | lad-001 | efasár |
| Latina Nova | lat-003 | e. fasciatus |
| kreyòl ayisyen | hat-000 | efase |
| morisyin | mfe-000 | efase |
| íslenska | isl-000 | efasemd |
| íslenska | isl-000 | efasemdarfræ |
| íslenska | isl-000 | efasemd f |
| íslenska | isl-000 | efasemi |
| Cymraeg | cym-000 | e-fasnach |
| morisyin | mfe-000 | éfass |
| morisyin | mfe-000 | éfassé |
| íslenska | isl-000 | efast |
| íslenska | isl-000 | efast um |
| Mòkpè | bri-000 | èfàsù |
| srpski | srp-001 | Efat |
| Dothraki | art-259 | efat |
| Masiwang | bnf-000 | efat |
| Bobot | bty-000 | efat |
| Bontoc—Guinaang | lbk-002 | efat |
| Talossan | tzl-000 | efat |
| Glottocode | art-327 | efat1235 |
| Glottocode | art-327 | efat1236 |
| Glottocode | art-327 | efat1240 |
| Iduna | viv-000 | efata |
| Njém | njy-000 | èfàtà |
| ‘E‘o ‘Kenata | mrq-000 | e fataá punaveéveé |
| ‘E‘o ‘Kenata | mrq-000 | e fataá pure |
| Afrikaans | afr-000 | Efate |
| toskërishte | als-000 | Efate |
| Glottolog Languoid Names | art-326 | Efate |
| asturianu | ast-000 | Efate |
| azərbaycanca | azj-000 | Efate |
| bosanski | bos-000 | Efate |
| català | cat-000 | Efate |
| Cymraeg | cym-000 | Efate |
| dansk | dan-000 | Efate |
| Deutsch | deu-000 | Efate |
| eesti | ekk-000 | Efate |
| English | eng-000 | Efate |
| euskara | eus-000 | Efate |
| føroyskt | fao-000 | Efate |
| Wikang Filipino | fil-000 | Efate |
| suomi | fin-000 | Efate |
| Gàidhlig | gla-000 | Efate |
| Gaeilge | gle-000 | Efate |
| galego | glg-000 | Efate |
| hrvatski | hrv-000 | Efate |
| magyar | hun-000 | Efate |
| bahasa Indonesia | ind-000 | Efate |
| íslenska | isl-000 | Efate |
| italiano | ita-000 | Efate |
| latviešu | lvs-000 | Efate |
| Nederlands | nld-000 | Efate |
| bokmål | nob-000 | Efate |
| polski | pol-000 | Efate |
| português europeu | por-002 | Efate |
| română | ron-000 | Efate |
| slovenčina | slk-000 | Efate |
| slovenščina | slv-000 | Efate |
| español | spa-000 | Efate |
| svenska | swe-000 | Efate |
| Kiswahili | swh-000 | Efate |
| lea fakatonga | ton-000 | Efate |
| türkmençe | tuk-000 | Efate |
| Türkçe | tur-000 | Efate |
| oʻzbek | uzn-000 | Efate |
| tiếng Việt | vie-000 | Efate |
| Bahasa Malaysia | zsm-000 | Efate |
| galego | glg-000 | Efaté |
| lietuvių | lit-000 | Efatė |
| čeština | ces-000 | Éfaté |
| Deutsch | deu-000 | Éfaté |
| français | fra-000 | Éfaté |
| polski | pol-000 | Éfaté |
| português | por-000 | Éfaté |
| español | spa-000 | Éfaté |
| Glottolog Languoid Names | art-326 | Efate group based (Artificial Language) |
| ISO 639-3 Inverted Names | art-291 | Efate, North |
| Ethnologue Primary Language Names | art-323 | Efate, North |
| Ethnologue Language Names | art-330 | Efate, North |
| Ɛʋɛgbɛ | ewe-000 | Efate nutomegaƒoƒome |
| Glottolog Languoid Names | art-326 | Efatese |
| ISO 639-3 Inverted Names | art-291 | Efate, South |
| Ethnologue Primary Language Names | art-323 | Efate, South |
| Ethnologue Language Names | art-330 | Efate, South |
| ‘E‘o ‘Kenata | mrq-000 | e fati |
| Kurmancî | kmr-000 | efatî |
| italiano | ita-000 | è fatica sprecata |
| Uyghurche | uig-001 | éfat milliti |
| italiano | ita-000 | e fato alba |
| teny malagasy | mlg-000 | efatra |
| fiteny Malagasy | plt-000 | efatra |
| fiteny Malagasy | plt-000 | èfatra |
| teny malagasy | mlg-000 | éfatra |
| fiteny Malagasy | plt-000 | éfatra |
| Merina | plt-001 | éfatra |
| fiteny Malagasy | plt-000 | efatra amby ny folo |
| fiteny Malagasy | plt-000 | efatra heny |
| Hausa | hau-000 | efau |
| français | fra-000 | éfaufiler |
| Narom | nrm-000 | éfaunt |
| Talossan | tzl-000 | efaval |
| Deutsch | deu-000 | Efavirenz |
| English | eng-000 | efavirenz |
| slovenščina | slv-000 | efavirenz |
| español | spa-000 | efavirenz |
| français | fra-000 | éfavirenz |
| italiano | ita-000 | e favoloso |
| polski | pol-000 | efawirenz |
| filename extensions | art-335 | efax |
| English | eng-000 | eFax Document |
| TechTarget file types | art-336 | EFAX-New-Contact-Fax-Form-file |
| Lunyole | nuj-000 | efayini |
| Lunyole | nuj-000 | efayiro |
| lisân-ı Osmânî | ota-001 | efâzıl |
| Mbe | mfo-000 | è-fàŋ |
| kinship notation | art-251 | EFB |
| English | eng-000 | EfB |
| English | eng-000 | E. F. Band |
| português | por-000 | E.F. Band |
| English | eng-000 | ÉF Bastia |
| español | spa-000 | E. F. Benson |
| dansk | dan-000 | EF-beslutning |
| dansk | dan-000 | EfB Ishockey |
| Esperanto | epo-000 | EFBN |
| English | eng-000 | EFC |
| filename extensions | art-335 | efc |
| TechTarget file types | art-336 | EFC-EFCoins-File |
| TechTarget file types | art-336 | EFC-Effect |
| dansk | dan-000 | EF-certificering |
| TechTarget file types | art-336 | EFC-FAIRCOPY-encrypted-fair-copy |
| Talossan | tzl-000 | efcʼharamint |
| Talossan | tzl-000 | efcʼhareu |
| Ellinika | ell-003 | efcharistiménos |
| Ellinika | ell-003 | efcharistó |
| Ellinika | ell-003 | efcharístos |
| Ellinika | ell-003 | efchí |
| English | eng-000 | EFCoins File |
| English | eng-000 | Efco-Northrup furnace |
| English | eng-000 | Efco-Udylite process |
| English | eng-000 | EFCS |
| English | eng-000 | EFC system |
| TechTarget file types | art-336 | EFC-Technics-Sx-KN-6000-keyboard-effect-memory-file |
| English | eng-000 | EFD |
| filename extensions | art-335 | efd |
| English | eng-000 | efd |
| English | eng-000 | EFDA |
| Iranian Romany | rmn-000 | efdā́ |
| lisân-ı Osmânî | ota-001 | efdal |
| Türkçe | tur-000 | efdal |