| English | eng-000 |
| Tonga | |
| Afrikaans | afr-000 | Tonga |
| Aghem | agq-000 | Tuŋgà |
| Akan | aka-000 | Tonga |
| toskërishte | als-000 | Tonga |
| አማርኛ | amh-000 | ቶንጋ |
| العربية | arb-000 | الجزر الصديقة |
| العربية | arb-000 | تونجا |
| العربية | arb-000 | تونجا - جزر تونجا |
| العربية | arb-000 | تونغا |
| العربية | arb-000 | تُونْغَا |
| العربية | arb-000 | مملكة تونغا |
| Classical Arabic—ASJP | arb-001 | Tūnǧā |
| luenga aragonesa | arg-000 | Tonga |
| ISO 639-3 | art-001 | tnz |
| ISO 639-3 | art-001 | tog |
| ISO 639-3 | art-001 | toi |
| ISO 639-3 | art-001 | ton |
| ISO 639-2/B | art-003 | tog |
| ISO 639-2/B | art-003 | ton |
| ISO 639-1 | art-004 | to |
| ISO 639 | art-005 | ton |
| ISO 3166 alpha | art-006 | TO |
| ISO 3166 alpha | art-006 | TON |
| Toki Pona | art-007 | ma Tona |
| Romániço | art-013 | tonga |
| Universal Networking Language | art-253 | tonga(icl>bantu>abstract_thing,iof>language) |
| Universal Networking Language | art-253 | tonga(iof>country>thing) |
| UN M.49 | art-279 | 776 |
| ISO 639-3 Inverted Names | art-291 | Tonga (Nyasa) |
| ISO 639-3 Inverted Names | art-291 | Tonga (Thailand) |
| ISO 639-3 Inverted Names | art-291 | Tonga (Tonga Islands) |
| ISO 639-3 Inverted Names | art-291 | Tonga (Zambia) |
| Codes des pays, zones et régions | art-293 | 776 |
| UNDP Country Codes | art-294 | TON |
| FAO Country Code | art-296 | 219 |
| GAUL Country Codes | art-297 | 245 |
| Kipare | asa-000 | Tonga |
| asturianu | ast-000 | Tonga |
| azərbaycanca | azj-000 | Tonqa |
| azərbaycanca | azj-000 | tonqa dili |
| Азәрбајҹан дили | azj-001 | Тонга |
| bamanankan | bam-000 | Tonga |
| ɓàsàa | bas-000 | Tɔŋgà |
| беларуская | bel-000 | Тангійская |
| беларуская | bel-000 | Тонга |
| বাংলা | ben-000 | টঙ্গা |
| বাংলা | ben-000 | টোঙ্গা |
| Ekibena | bez-000 | Hutonga |
| bosanski | bos-000 | Tonga |
| босански | bos-001 | Тонга |
| বিষ্ণুপ্রিয়া মণিপুরী ভাষা | bpy-000 | টঙ্গা |
| brezhoneg | bre-000 | Tonga |
| बरʼ | brx-000 | टॉंगा |
| български | bul-000 | Тонга |
| bălgarski ezik | bul-001 | Tonga |
| ብሊና | byn-000 | ቶንጋ |
| català | cat-000 | Illes Friendly |
| català | cat-000 | Illes del Amics |
| català | cat-000 | Tonga |
| català | cat-000 | tonga |
| binisayang Sinugboanon | ceb-000 | Tonga |
| čeština | ces-000 | Království Tonga |
| čeština | ces-000 | Přátelské ostrovy |
| čeština | ces-000 | Tonga |
| čeština | ces-000 | tonga |
| Rukiga | cgg-000 | Tonga |
| нохчийн мотт | che-000 | Тонга |
| ᏣᎳᎩ ᎧᏬᏂᎯᏍᏗ | chr-000 | ᏙᏅᎦ |
| سۆرانی | ckb-000 | تۆنگا |
| 普通话 | cmn-000 | 东加 |
| 普通话 | cmn-000 | 东加语 |
| 普通话 | cmn-000 | 友爱群岛 |
| 普通话 | cmn-000 | 汤 加 |
| 普通话 | cmn-000 | 汤加 |
| 普通话 | cmn-000 | 汤加文 |
| 普通话 | cmn-000 | 汤加王国 |
| 普通话 | cmn-000 | 汤加群岛 |
| 普通话 | cmn-000 | 汤加语 |
| 國語 | cmn-001 | 東加 |
| 國語 | cmn-001 | 東加文 |
| 國語 | cmn-001 | 湯加 |
| 國語 | cmn-001 | 湯加群島 |
| Hànyǔ | cmn-003 | Dōngjiā |
| Hànyǔ | cmn-003 | Tāngjiā |
| Hànyǔ | cmn-003 | tāng jiā qún dao |
| 香港官話 | cmn-021 | 湯加 |
| Kernowek | cor-000 | Tonga |
| Qırımtatar tili | crh-000 | Tonga |
| Cymraeg | cym-000 | Tonga |
| dansk | dan-000 | Tonga |
| dansk | dan-000 | tongansk |
| Kitaita | dav-000 | Tonga |
| Deutsch | deu-000 | Freundschaftsinseln |
| Deutsch | deu-000 | Königreich Tonga |
| Deutsch | deu-000 | Tonga |
| Deutsch | deu-000 | Tongaisch |
| Zazaki | diq-000 | Tonga |
| ދިވެހިބަސް | div-000 | ޓޮންގާ |
| zarmaciine | dje-000 | Tonga |
| dolnoserbska reč | dsb-000 | Tonga |
| རྫོང་ཁ་ | dzo-000 | ཊོང་གྷ |
| Kĩembu | ebu-000 | Tonga |
| eesti | ekk-000 | Tonga |
| eesti | ekk-000 | tonga |
| ελληνικά | ell-000 | Βασίλειο της Τόνγκα |
| ελληνικά | ell-000 | Τόγκα |
| ελληνικά | ell-000 | Τόνγκα |
| Ellinika | ell-003 | Tón-ga |
| English | eng-000 | Friendly Islands |
| English | eng-000 | Kingdom of Tonga |
| English | eng-000 | Nyasa |
| English | eng-000 | Nyasa Tonga |
| English | eng-000 | Tongan |
| English | eng-000 | carriage |
| English | eng-000 | the Kingdom of Tonga |
| 𐐀𐑍𐑊𐐮𐑇 | eng-006 | 𐐓𐐪𐑍𐑀𐐲 |
| Esperanto | epo-000 | Tongo |
| Esperanto | epo-000 | tongaa |
| Esperanto | epo-000 | tongo |
| euskara | eus-000 | Tonga |
| Ɛʋɛgbɛ | ewe-000 | Tonga nutome |
| ewondo | ewo-000 | Tɔngá |
| føroyskt | fao-000 | Tonga |
| Wikang Filipino | fil-000 | Tonga |
| suomi | fin-000 | Friendly Islands |
| suomi | fin-000 | Tonga |
| suomi | fin-000 | Tongan kuningaskunta |
| suomi | fin-000 | malawintonga |
| suomi | fin-000 | tonga |
| suomi | fin-000 | tongalainen |
| suomi | fin-000 | tongantonga |
| français | fra-000 | Royaume des Tonga |
| français | fra-000 | Tonga |
| français | fra-000 | le Royaume des Tonga |
| français | fra-000 | les Tonga |
| français | fra-000 | tonga |
| français | fra-000 | tongan |
| français | fra-000 | Ìles des Amis |
| français | fra-000 | Îles des Amis |
| lenga arpitana | frp-000 | Tonga |
| Frysk | fry-000 | Tonga |
| Pulaar | fuc-000 | Tonngaa |
| Faka Futuna | fud-000 | Toga |
| Fulfulde | ful-000 | Tonngaa |
| lenghe furlane | fur-000 | Tonga |
| ግዕዝ | gez-000 | ቶንጋ |
| Gàidhlig | gla-000 | Tonga |
| Gaeilge | gle-000 | Tonga |
| galego | glg-000 | Tonga |
| yn Ghaelg | glv-000 | Yn Tongey |
| Schwizerdütsch | gsw-000 | Tonga |
| ગુજરાતી | guj-000 | ટાંગો |
| ગુજરાતી | guj-000 | ટોંગા |
| Ekegusii | guz-000 | Tonga |
| kreyòl ayisyen | hat-000 | Tonga |
| Hausa | hau-000 | Tanga |
| ʻōlelo Hawaiʻi | haw-000 | Kona |
| Српскохрватски | hbs-000 | Тонга |
| Srpskohrvatski | hbs-001 | Tonga |
| עברית | heb-000 | טונגה |
| ISO 259-3 | heb-001 | Tonga |
| हिन्दी | hin-000 | टोंगा |
| हिन्दी | hin-000 | टोंगा साम्राज्य |
| हिन्दी | hin-000 | तंग |
| हिन्दी | hin-000 | तांगा |
| हिन्दी | hin-000 | फ्रेंडली द्वीप |
| hrvatski | hrv-000 | Tonga |
| hornjoserbšćina | hsb-000 | Tonga |
| magyar | hun-000 | Barátság-szigetek |
| magyar | hun-000 | Tonga |
| magyar | hun-000 | Tongai Királyság |
| magyar | hun-000 | tonga |
| արևելահայերեն | hye-000 | Տոնգա |
| Ido | ido-000 | Tonga |
| interlingua | ina-000 | Tonga |
| interlingua | ina-000 | tonga |
| bahasa Indonesia | ind-000 | Friendly Islands |
| bahasa Indonesia | ind-000 | Tonga |
| íslenska | isl-000 | Tonga |
| íslenska | isl-000 | Tongverska (Tongaeyjar) |
| íslenska | isl-000 | Vináttueyjar |
| italiano | ita-000 | Isole dell’Amicizia |
| italiano | ita-000 | Regno di Tonga |
| italiano | ita-000 | Tonga |
| italiano | ita-000 | tonga |
| basa Jawa | jav-000 | Tonga |
| la lojban. | jbo-000 | gugdetuʼo |
| Kimachame | jmc-000 | Tonga |
| 日本語 | jpn-000 | トンガ |
| 日本語 | jpn-000 | トンガ王国 |
| 日本語 | jpn-000 | トンガ語 |
| 日本語 | jpn-000 | フレンドリ諸島 |
| Nihongo | jpn-001 | Tonga |
| Taqbaylit | kab-000 | Ṭunga |
| kalaallisut | kal-000 | Tonga |
| Kĩkamba | kam-000 | Tonga |
| ಕನ್ನಡ | kan-000 | ಟೊಂಗ |
| كأشر | kas-000 | ٹونٛگا |
| कॉशुर | kas-001 | टोंगा |
| ქართული | kat-000 | ტონგა |
| қазақ | kaz-000 | Тонга |
| қазақ | kaz-000 | Тонго |
| қазақ | kaz-000 | Тоңа |
| Chimakonde | kde-000 | Tonga |
| kriolu kabuverdianu | kea-000 | Tonga |
| монгол | khk-000 | Тонга |
| ភាសាខ្មែរ | khm-000 | តុងហ្គា |
| ភាសាខ្មែរ | khm-000 | តុងហ្គោ |
| ភាសាខ្មែរ | khm-000 | ភាសាតុងហ្គោ |
| Koyra Chiini | khq-000 | Tonga |
| Gĩkũyũ | kik-000 | Tonga |
| ikinyarwanda | kin-000 | Igitonga |
| кыргыз | kir-000 | Тонга |
| Kalenjin | kln-000 | Emetab Tonga |
| Kalenjin | kln-000 | Tonga |
| Kurmancî | kmr-000 | Tonga |
| कोंकणी | kok-000 | तोंगा |
| 한국어 | kor-000 | 남태평양의 소왕국 |
| 한국어 | kor-000 | 이륜 마차 |
| 한국어 | kor-000 | 통가 |
| 한국어 | kor-000 | 통가어 |
| 한국어 | kor-000 | 프렌들리 제도 |
| Hangungmal | kor-001 | Tongga |
| Kishambaa | ksb-000 | Tonga |
| rikpa | ksf-000 | tɔŋa |
| Kölsch | ksh-000 | Tonga |
| Kölsch | ksh-000 | Tongga |
| Kölsch | ksh-000 | Tongja |
| Kɨlaangi | lag-000 | Tóonga |
| ລາວ | lao-000 | ທອງກາ |
| ລາວ | lao-000 | ທອງກ້າ |
| latine | lat-000 | Tonga |
| Lingua Franca Nova | lfn-000 | Tonga |
| lengua lígure | lij-000 | Tonga |
| Limburgs | lim-000 | Tonga |
| lingála | lin-000 | Tonga |
| lietuvių | lit-000 | Tonga |
| Lëtzebuergesch | ltz-000 | Tonga |
| Tshiluba | lub-000 | Tonga |
| Oluganda | lug-000 | Tonga |
| Dholuo | luo-000 | Tonga |
| Oluluyia | luy-000 | Tonga |
| latviešu | lvs-000 | Tonga |
| latviešu | lvs-000 | tongu |
| മലയാളം | mal-000 | ടോംഗ |
| മലയാളം | mal-000 | ടോംഗന് |
| मराठी | mar-000 | टांगा |
| मराठी | mar-000 | टोंगा |
| मराठी | mar-000 | तोंगा |
| ɔl Maa | mas-000 | Tonga |
| Kĩmĩrũ | mer-000 | Tonga |
| morisyin | mfe-000 | Tonga |
| Meetto | mgh-000 | Utonga |
| македонски | mkd-000 | Тонга |
| Malti | mlt-000 | Tonga |
| Malti | mlt-000 | Tongan (Gżejjer ta’ Tonga) |
| reo Māori | mri-000 | Tonga |
| mundaŋ | mua-000 | Sǝr Tonga |
| မြန်မာဘာသာ | mya-000 | တွန်ဂါ |
| مازرونی | mzn-000 | تونگا |
| Bân-lâm-gú | nan-005 | Tonga |
| Nàmá | naq-000 | Tonga |
| Diné bizaad | nav-000 | Tʼónga |
| Nāhuatlahtōlli | nci-000 | Tonga |
| isiNdebele | nde-000 | Thonga |
| Plattdüütsch | nds-000 | Tonga |
| Plattdüütsch-Neddersassisch | nds-002 | Tonga |
| Nederlands | nld-000 | Tonga |
| Nederlands | nld-000 | Tsonga |
| Kwasio | nmg-000 | Tɔnga |
| nynorsk | nno-000 | Tonga |
| nynorsk | nno-000 | tonga (Tonga-øyane) |
| bokmål | nob-000 | Tonga |
| bokmål | nob-000 | tongansk |
| नेपाली | npi-000 | टोंगा |
| Runyankore | nyn-000 | Tonga |
| occitan | oci-000 | Tonga |
| occitan | oci-000 | Tònga |
| ଓଡ଼ିଆ | ory-000 | ଟୋଙ୍ଗା |
| ирон ӕвзаг | oss-000 | Тонгæ |
| Amanung Sisuan | pam-000 | Tonga |
| ਪੰਜਾਬੀ | pan-000 | ਟੌਂਗਾ |
| Pashtu | pbt-000 | gaaddei |
| پښتو ژبه | pbu-000 | ټونګا |
| Baffa Pashto | pbu-001 | T°ūnk°ā |
| فارسی | pes-000 | تونگا |
| فارسی | pes-000 | تونگایی |
| فارسی | pes-000 | جزاير فرندلي |
| فارسی | pes-000 | پادشاهي تونگو |
| Isfahani | pes-001 | Tungā |
| fiteny Malagasy | plt-000 | Tongà |
| lenga piemontèisa | pms-000 | Tònga |
| polski | pol-000 | Królestwo Tonga |
| polski | pol-000 | Tonga |
| polski | pol-000 | Wyspy Przyjacielskie |
| polski | pol-000 | chitonga |
| polski | pol-000 | citonga |
| polski | pol-000 | język tonga |
| polski | pol-000 | tonga |
| português | por-000 | Ilha dos Amigos |
| português | por-000 | Língua tonga |
| português | por-000 | Reino de Tonga |
| português | por-000 | Tonga |
| português | por-000 | tonga |
| português | por-000 | tonganês |
| Runa Simi | que-000 | Tonga |
| Kihorombo | rof-000 | Tonga |
| lingua rumantscha | roh-000 | Tonga |
| română | ron-000 | Tonga |
| Kirundi | run-000 | Tonga |
| русский | rus-000 | Королевство Тонга |
| русский | rus-000 | То́нга |
| русский | rus-000 | Тонга |
| русский | rus-000 | Тонго |
| русский | rus-000 | тонга |
| русский | rus-000 | язык Тонга |
| russkij | rus-001 | Tonga |
| Kiruwa | rwk-000 | Tonga |
| Sängö | sag-000 | Tonga |
| संस्कृतम् | san-000 | टोंगा |
| Samburu | saq-000 | Tonga |
| Ishisangu | sbp-000 | Tonga |
| lingua siciliana | scn-000 | Tonga |
| Scots leid | sco-000 | Tonga |
| cisena | seh-000 | Tonga |
| Koyraboro senni | ses-000 | Tonga |
| Žemaitiu | sgs-000 | Tuonga |
| Tacelḥit | shi-001 | ṭunga |
| ⵜⴰⵛⵍⵃⵉⵜ | shi-003 | ⵟⵓⵏⴳⴰ |
| සිංහල | sin-000 | ටොංගා |
| slovenčina | slk-000 | Kráľovstvo Tonga |
| slovenčina | slk-000 | Priateľské ostrovy |
| slovenčina | slk-000 | Tonga |
| slovenščina | slv-000 | Tonga |
| davvisámegiella | sme-000 | Tonga |
| anarâškielâ | smn-000 | Tonga |
| gagana faʻa Samoa | smo-000 | Toga |
| chiShona | sna-000 | Tonga |
| Soomaaliga | som-000 | Tonga |
| español | spa-000 | Amigos |
| español | spa-000 | Islas Amistosas |
| español | spa-000 | Islas de los Amigos |
| español | spa-000 | Reino de Tonga |
| español | spa-000 | Tonga |
| español | spa-000 | el Reino de Tonga |
| español | spa-000 | tonga |
| español | spa-000 | tongano |
| shqip | sqi-000 | Tonga |
| српски | srp-000 | Тонга |
| srpski | srp-001 | Tonga |
| svenska | swe-000 | Tonga |
| svenska | swe-000 | tonganska |
| Kiswahili | swh-000 | Tonga |
| reo Tahiti | tah-000 | Toʻa |
| reo Tahiti | tah-000 | To’a |
| தமிழ் | tam-000 | டோங்கா |
| தமிழ் | tam-000 | தொங்கா |
| tatar tele | tat-000 | Тонга |
| తెలుగు | tel-000 | టోంగా |
| తెలుగు | tel-000 | ఠాఙ్గ |
| Ateso | teo-000 | Tonga |
| тоҷикӣ | tgk-000 | Тонга |
| Tagalog | tgl-000 | Tonga |
| ภาษาไทย | tha-000 | ตองกา |
| ภาษาไทย | tha-000 | ประเทศตองกา |
| ภาษาไทย | tha-000 | ภาษาตองกา |
| ภาษาไทย | tha-000 | ราชอาณาจักรตองกา |
| ภาษาไทย | tha-000 | สาธารณรัฐตองกา |
| ภาษาไทย | tha-000 | หมู่เกาะเฟรนด์ลี |
| ቲግሬ | tig-000 | ቶንጋ |
| ትግርኛ | tir-000 | ቶንጋ |
| chiTonga | tog-000 | chiTonga |
| lea fakatonga | ton-000 | Faka-Tonga |
| lea fakatonga | ton-000 | Puleʻanga Fakatuʻi ʻo Tonga |
| lea fakatonga | ton-000 | Tonga |
| lea fakatonga | ton-000 | faka-Tonga |
| lea fakatonga | ton-000 | lea fakatonga |
| Tok Pisin | tpi-000 | Tonga |
| xiTsonga | tso-000 | Tonga |
| Türkçe | tur-000 | Tonga |
| Tásàwàq | twq-000 | Tonga |
| Talossan | tzl-000 | Tonga |
| Tamaziɣt | tzm-001 | Ṭunga |
| Peace Corps 2007 Tamazight | tzm-009 | ṭunga |
| ئۇيغۇرچە | uig-000 | تونگا |
| Uyghurche | uig-001 | Tūngā |
| українська | ukr-000 | Тонга |
| українська | ukr-000 | Тонґа |
| Latynytsia | ukr-001 | Tonha |
| اردو | urd-000 | تونگا |
| اردو | urd-000 | ٹونگا |
| oʻzbek | uzn-000 | Tonga |
| Ўзбекча | uzn-001 | Тонга |
| ꕙꔤ | vai-000 | ꗋꕬ |
| Vai | vai-001 | Tɔnga |
| tiếng Việt | vie-000 | Tonga |
| tiếng Việt | vie-000 | Tông-ga |
| Volapük | vol-000 | Tonguäns |
| Kyivunjo | vun-000 | Tonga |
| Walser | wae-000 | Tonga |
| Fakaʻuvea | wls-000 | Toga |
| kàllaama wolof | wol-000 | Tonga |
| Lusoga | xog-000 | Tonga |
| nuasúɛ | yav-000 | tɔ́ŋka |
| ייִדיש | ydd-000 | טאנגאַ |
| èdè Yorùbá | yor-000 | Orílẹ́ède Tonga |
| èdè Yorùbá Orílẹ̀-èdè Olómìnira ilẹ̀ Benin | yor-011 | Orílɛ́ède Tonga |
| 廣東話 | yue-000 | 東加 |
| ⵜⴰⵎⴰⵣⵉⵖⵜ | zgh-000 | ⵟⵓⵏⴳⴰ |
| Bahasa Malaysia | zsm-000 | Friendly Islands |
| Bahasa Malaysia | zsm-000 | Tonga |
| isiZulu | zul-000 | i-Tonga |