| Afrikaans | afr-000 | TTD |
| አማርኛ | amh-000 | TTD |
| العربية | arb-000 | TTD |
| ISO 4217 | art-320 | TTD |
| asturianu | ast-000 | TTD |
| azərbaycanca | azj-000 | TTD |
| беларуская | bel-000 | TTD |
| বাংলা | ben-000 | TTD |
| bosanski | bos-000 | TTD |
| brezhoneg | bre-000 | TTD |
| български | bul-000 | TTD |
| català | cat-000 | TTD |
| čeština | ces-000 | TTD |
| нохчийн мотт | che-000 | TTD |
| 普通话 | cmn-000 | TTD |
| 國語 | cmn-001 | TTD |
| Cymraeg | cym-000 | TTD |
| dansk | dan-000 | TTD |
| Deutsch | deu-000 | TTD |
| eesti | ekk-000 | TTD |
| ελληνικά | ell-000 | TTD |
| English | eng-000 | TTD |
| euskara | eus-000 | TTD |
| føroyskt | fao-000 | TTD |
| Wikang Filipino | fil-000 | TTD |
| suomi | fin-000 | TTD |
| français canadien | fra-012 | TTD |
| Gàidhlig | gla-000 | TTD |
| Gaeilge | gle-000 | TTD |
| galego | glg-000 | TTD |
| ગુજરાતી | guj-000 | TTD |
| עברית | heb-000 | TTD |
| हिन्दी | hin-000 | TTD |
| hrvatski | hrv-000 | TTD |
| magyar | hun-000 | TTD |
| արևելահայերեն | hye-000 | TTD |
| bahasa Indonesia | ind-000 | TTD |
| íslenska | isl-000 | TTD |
| italiano | ita-000 | TTD |
| 日本語 | jpn-000 | TTD |
| ಕನ್ನಡ | kan-000 | TTD |
| ქართული | kat-000 | TTD |
| қазақ | kaz-000 | TTD |
| монгол | khk-000 | TTD |
| ភាសាខ្មែរ | khm-000 | TTD |
| кыргыз | kir-000 | TTD |
| 한국어 | kor-000 | TTD |
| ລາວ | lao-000 | TTD |
| lietuvių | lit-000 | TTD |
| latviešu | lvs-000 | TTD |
| മലയാളം | mal-000 | TTD |
| मराठी | mar-000 | TTD |
| македонски | mkd-000 | TTD |
| مازرونی | mzn-000 | TTD |
| Nederlands | nld-000 | TTD |
| bokmål | nob-000 | TTD |
| नेपाली | npi-000 | TTD |
| ਪੰਜਾਬੀ | pan-000 | TTD |
| فارسی | pes-000 | TTD |
| polski | pol-000 | TTD |
| português | por-000 | TTD |
| română | ron-000 | TTD |
| русский | rus-000 | TTD |
| සිංහල | sin-000 | TTD |
| slovenčina | slk-000 | TTD |
| slovenščina | slv-000 | TTD |
| español | spa-000 | TTD |
| српски | srp-000 | TTD |
| srpski | srp-001 | TTD |
| svenska | swe-000 | TTD |
| Kiswahili | swh-000 | TTD |
| தமிழ் | tam-000 | TTD |
| తెలుగు | tel-000 | TTD |
| ภาษาไทย | tha-000 | TTD |
| türkmençe | tuk-000 | TTD |
| Türkçe | tur-000 | TTD |
| українська | ukr-000 | TTD |
| اردو | urd-000 | TTD |
| oʻzbek | uzn-000 | TTD |
| tiếng Việt | vie-000 | TTD |
| Bahasa Malaysia | zsm-000 | TTD |
| isiZulu | zul-000 | TTD |
| ISO 639-3 | art-001 | ttd |
| filename extensions | art-335 | ttd |
| Peace Corps 2007 Tamazight | tzm-009 | ṭṭd |
| ISO 639-PanLex | art-274 | ttd-000 |
| TechTarget file types | art-336 | TTD-Data-logging-datafile |
| ISO 3166-2 | art-416 | TT-DMN |
| čeština | ces-000 | TTDPatch |
| English | eng-000 | TTDPatch |
| svenska | swe-000 | TTDPatch |
| Gawwada—Gollango | gwd-003 | -tte |
| Hadiyya | hdy-000 | -tte |
| Kunama | kun-000 | -tte |
| Takia | tbc-000 | -tte |
| English | eng-000 | TTE |
| español | spa-000 | Tte. |
| bjedough | ady-001 | tte |
| ISO 639-3 | art-001 | tte |
| filename extensions | art-335 | tte |
| Sabu | hvn-000 | tte |
| Nihongo | jpn-001 | tte |
| Tōkyō hōgen | jpn-003 | tte |
| Kunama | kun-000 | tte |
| napulitano | nap-000 | tte |
| bokmål | nob-000 | tte |
| Umoⁿhoⁿ | oma-000 | tte |
| napulitano | nap-000 | ttè |
| East | nic-007 | ttẽ |
| ISO 639-PanLex | art-274 | tte-000 |
| Takuu | nho-000 | t/tea |
| Umoⁿhoⁿ | oma-000 | ttébi’a ttą́ga |
| تشلحيت | shi-000 | ttêd |
| Taqbaylit | kab-000 | ttedh |
| English | eng-000 | T tee-bar |
| Emakhua | vmw-000 | tteego |
| Gwere | gwr-000 | tteeka |
| Oluganda | lug-000 | tteeka |
| Kato | ktw-000 | tteeminʼ yaaʼnii |
| Emakhua | vmw-000 | tteengu |
| Taroko | trv-000 | tteetu |
| Taqbaylit | kab-000 | ttef |
| تشلحيت | shi-000 | ttêfrit |
| تشلحيت | shi-000 | ttêfriyt |
| تشلحيت | shi-000 | ttegnu |
| تشلحيت | shi-000 | ttegru |
| Aln8ba8dwaw8gan | abe-000 | ttegw |
| تشلحيت | shi-000 | ttegwnu |
| Emakhua | vmw-000 | ttehi |
| Wancho | nnp-000 | ttei |
| Taqbaylit | kab-000 | ttʼejra |
| Pashtu | pbt-000 | ttekawem |
| Emakhua | vmw-000 | ttekeña |
| Emakhua | vmw-000 | ttekettula |
| Emakhua | vmw-000 | ttekettuwa |
| Emakhua | vmw-000 | ttekettyaa |
| Pashtu | pbt-000 | ttékey |
| Emakhua | vmw-000 | ttekhu |
| Pashtu | pbt-000 | ttek ttek |
| تشلحيت | shi-000 | ttêl |
| English | eng-000 | TTELA |
| bokmål | nob-000 | TTELA |
| svenska | swe-000 | TTELA |
| Oluganda | lug-000 | ttelekero |
| Oluganda | lug-000 | ttelekero lyʼensimbi |
| français | fra-000 | tte lexicale |
| Emakhua | vmw-000 | ttemaangu |
| Emakhua | vmw-000 | ttembeñula |
| Emakhua | vmw-000 | ttembeñuwa |
| basa ugi | bug-001 | ttemeh |
| Taqbaylit | kab-000 | ttemghed |
| English | eng-000 | T＝temperature |
| Oluganda | lug-000 | ttemu |
| Emakhua | vmw-000 | ttemula |
| Emakhua | vmw-000 | ttemulaniha |
| Emakhua | vmw-000 | ttemulela |
| Emakhua | vmw-000 | ttemulesa |
| Emakhua | vmw-000 | tteña |
| Kajin M̧ajeļ | mah-000 | tteņa-k |
| bokmål | nob-000 | ttende |
| Emakhua | vmw-000 | ttende |
| bokmål | nob-000 | ttendedelsnote |
| Emakhua | vmw-000 | ttendehu |
| Oluganda | lug-000 | ttendekero |
| Emakhua | vmw-000 | ttenderuwa |
| Oluganda | lug-000 | ttendo |
| Emakhua | vmw-000 | ttenga |
| Emakhua | vmw-000 | ttengura |
| Emakhua | vmw-000 | ttengurera |
| Emakhua | vmw-000 | ttenguusi |
| Emakhua | vmw-000 | ttenguuxi |
| Emakhua | vmw-000 | ttenguwa |
| Emakhua | vmw-000 | ttenguwaca |
| Emakhua | vmw-000 | ttenje |
| Emakhua | vmw-000 | ttenku |
| English | eng-000 | tteok |
| English | eng-000 | tteokbokki |
| Emakhua | vmw-000 | ttepa |
| Emakhua | vmw-000 | ttepetta |
| Emakhua | vmw-000 | ttepettyaa |
| Emakhua | vmw-000 | ttepo |
| Emakhua | vmw-000 | ttepula |
| Emakhua | vmw-000 | ttepuwa |
| Uyghurche | uig-001 | t teqsimat |
| Taqbaylit | kab-000 | tter |
| Kunza | kuz-000 | tte-ra-tur |
| Oluganda | lug-000 | tterekero lyʼamata |
| Oluganda | lug-000 | tterekero lyebyobuwangwa |
| Emakhua | vmw-000 | tterekha |
| Emakhua | vmw-000 | ttereko |
| Emakhua | vmw-000 | tteremuuko |
| Uyghurche | uig-001 | ttergüch |
| suomi | fin-000 | tTerraformointi |
| basa ugi | bug-001 | tterrih |
| Türkçe | tur-000 | TTERS |
| TechTarget file types | art-336 | T-terse-Language-Source-Code-JimNeiL |
| Taqbaylit | kab-000 | ttes |
| تشلحيت | shi-000 | ttês |
| Emakhua | vmw-000 | ttesa |
| Cicipu | awc-000 | ttésí |
| English | eng-000 | t test |
| English | eng-000 | t-test |
| TechTarget file types | art-336 | T-Tester-symbol-file |
| TechTarget file types | art-336 | T-Tester-symbol-file-ReaGeniX-code-generator |
| suomi | fin-000 | t-testi |
| TechTarget file types | art-336 | TTE-TextTransformer-Detlef-Meyer-Eltz |
| ISO 3166-2 | art-416 | TT-ETO |
| español | spa-000 | Ttetraodontidae |
| Emakhua | vmw-000 | ttette |
| Emakhua | vmw-000 | ttetteka |
| Emakhua | vmw-000 | ttettemela |
| Emakhua | vmw-000 | ttettera |
| Emakhua | vmw-000 | ttettere |
| Emakhua | vmw-000 | ttetthe |
| Emakhua | vmw-000 | ttettheruwa |
| basa ugi | bug-001 | ttettong |
| Kunza | kuz-000 | tte-tur |
| Hangungmal | kor-001 | tteugeo |
| Kajin M̧ajeļ | mah-000 | ttéw |
| Kajin M̧ajeļ | mah-000 | ttew-(ļakw) |
| Malti | mlt-000 | t- Tewmin |
| Emakhua | vmw-000 | ttewuka |
| Emakhua | vmw-000 | ttewula |
| Emakhua | vmw-000 | ttexa |
| English | eng-000 | T Text Quality |
| Sranantongo | srn-000 | ttey |
| Puyuma | pyu-000 | tteyal |
| Bunun | bnn-000 | tteyan |
| Kavalan | ckv-000 | tteyan |
| Satawalese | stw-000 | ttéŋ |
| nəxʷsƛ̕ay̕əmúcən | clm-000 | t̕t̕éʔyəm̕ |
| తెలుగు | tel-000 | {{t|te|చిక్కము}} |
| తెలుగు | tel-000 | {{t|te|నిర్వాహము}} |
| తెలుగు | tel-000 | {{t|te|నివాసము}} |
| తెలుగు | tel-000 | {{t|te|పెదనాన}} |
| తెలుగు | tel-000 | {{t+|te|పొద్దుతిరుగుడు}} |
| తెలుగు | tel-000 | {{t|te|బాబాయి}} |
| తెలుగు | tel-000 | {{t|te|మామ}} |
| తెలుగు | tel-000 | {{t|te|వారసత్వము}} |
| తెలుగు | tel-000 | {{t|te|సగము}} |
| తెలుగు | tel-000 | {{t|te|సుడిగుండము}} |
| English | eng-000 | TTF |
| ISO 639-3 | art-001 | ttf |
| filename extensions | art-335 | ttf |
| Peace Corps 2007 Tamazight | tzm-009 | ttf |
| mədəŋkyɛ | bgj-000 | t̆̌tf̆ʼ |
| Peace Corps 2007 Tamazight | tzm-009 | ṭṭf |
| ISO 639-PanLex | art-274 | ttf-000 |
| English | eng-000 | TTFB |
| français | fra-000 | TTFB |
| English | eng-000 | Tt File |
| English | eng-000 | TTFN |
| Peace Corps 2007 Tamazight | tzm-009 | ṭṭf s |
| English | eng-000 | TTFSE |
| Esperanto | epo-000 | TTF_-tiparo_ |
| TechTarget file types | art-336 | TTF-TrueType-font-Generic |
| Riff | rif-000 | ttfuħ |
| ISO 639-3 | art-001 | ttg |
| filename extensions | art-335 | ttg |
| español estadounidense | spa-024 | ttg |
| ISO 639-PanLex | art-274 | ttg-000 |
| bahasa Indonesia | ind-000 | ttg.bangsa Moor |
| TechTarget file types | art-336 | TTG-Command-Conquer-Red-Alert-3-file |
| bahasa Indonesia | ind-000 | ttg.kaisar Roma |
| bahasa Indonesia | ind-000 | ttg. poliandry |
| Glottocode | art-327 | ttgr1237 |
| Glottolog Languoid Names | art-326 | TT-Group |
| ISO 639-3 | art-001 | tth |
| ISO 639-PanLex | art-274 | tth-000 |
| Deg Xinag | ing-000 | -tthaʼ |
| Yukon Deg Xinag | ing-001 | -tthaʼ |
| Kuskokwim Deg Xinag | ing-002 | -tthaʼ |
| Deg Xinag | ing-000 | ttha |
| Yukon Deg Xinag | ing-001 | ttha |
| Kuskokwim Deg Xinag | ing-002 | ttha |
| tthʼigaʼ kenagaʼ | taa-000 | ttha |
| dän | tce-000 | tthʼa |
| Dene-thah | xsl-000 | tth’a |
| Dene-thah | xsl-000 | tth’á |
| Dinjii Zhuh K’yuu | gwi-000 | tthaa |
| Dinjii Zhuh K’yuu | gwi-000 | tthaa dinjii |
| Dinjii Zhuh K’yuu | gwi-000 | tthaa hatthak |
| Dinjii Zhuh K’yuu | gwi-000 | tthaa hichik |
| Emakhua | vmw-000 | tthaala |
| Yukon Deg Xinag | ing-001 | ttha aninalyagh sringitl |
| Dinjii Zhuh K’yuu | gwi-000 | tthaa njaa |
| Dinjii Zhuh K’yuu | gwi-000 | tthaa zhuu |
| tthʼigaʼ kenagaʼ | taa-000 | tthabasr |
| Emakhua | vmw-000 | tthabiya |
| Deg Xinag | ing-000 | tthachin |
| Yukon Deg Xinag | ing-001 | tthachin |
| Kuskokwim Deg Xinag | ing-002 | tthachin |
| Dene-thah | xsl-000 | tth’a dhéh |
| tthʼigaʼ kenagaʼ | taa-000 | tthadhełtʼokh |
| Deg Xinag | ing-000 | tthadhiy |
| Yukon Deg Xinag | ing-001 | tthadhiy |
| Kuskokwim Deg Xinag | ing-002 | tthadhiy |
| Deg Xinag | ing-000 | tthaggilats |
| Yukon Deg Xinag | ing-001 | tthaggilats |
| Kuskokwim Deg Xinag | ing-002 | tthaggilats |
| Dene-thah | xsl-000 | Tthaghae Deé |
| Dene-thah | xsl-000 | Tthaghoh Deé |
| Deg Xinag | ing-000 | tthagiłdziq |
| Yukon Deg Xinag | ing-001 | tthagiłdziq |
| Kuskokwim Deg Xinag | ing-002 | tthagiłdziq |
| Dinjii Zhuh K’yuu | gwi-000 | tthah |
| Dene-thah | xsl-000 | tthah |
| Dinjii Zhuh K’yuu | gwi-000 | tthah tsal |
| Dinjii Zhuh K’yuu | gwi-000 | tthah tsal dhah |
| Dinjii Zhuh K’yuu | gwi-000 | tthah tsal oolaii |
| Dinjii Zhuh K’yuu | gwi-000 | tthʼaii |
| Dinjii Zhuh K’yuu | gwi-000 | tthąįį adąįį |
| Dinjii Zhuh K’yuu | gwi-000 | tthʼaii hee |
| Yukon Deg Xinag | ing-001 | tthaʼil |
| Yukon Deg Xinag | ing-001 | tthaʼil gigag |
| Dinjii Zhuh K’yuu | gwi-000 | tthak |
| Dinjii Zhuh K’yuu | gwi-000 | tthʼak |
| Dene-thah | xsl-000 | tth’á kálé |
| Dene-thah | xsl-000 | tth’á k’é |
| tthʼigaʼ kenagaʼ | taa-000 | tthakʼoł |
| Dinjii Zhuh K’yuu | gwi-000 | tthʼak trʼaatsan |
| tthʼigaʼ kenagaʼ | taa-000 | tthakʼunaʼ |
| Emakhua | vmw-000 | tthala |
| Emakhua | vmw-000 | tthambara |
| Dene-thah | xsl-000 | tthámbeh |
| Dene-thah | xsl-000 | tth’á mezhíhgodį́htha |
| Dinjii Zhuh K’yuu | gwi-000 | tthʼan |
| Deg Xinag | ing-000 | -tthaʼ ngilaninh |
| Yukon Deg Xinag | ing-001 | -tthaʼ ngilaninh |
| Kuskokwim Deg Xinag | ing-002 | -tthaʼ ngilaninh |
| Dinjii Zhuh K’yuu | gwi-000 | tthʼan kʼit |
| Emakhua | vmw-000 | tthapa |
| Emakhua | vmw-000 | tthapwe |
| Deg Xinag | ing-000 | tthaq |
| Yukon Deg Xinag | ing-001 | tthaq |
| Kuskokwim Deg Xinag | ing-002 | tthaq |
| Deg Xinag | ing-000 | tthaqʼidz dixił’oniy |
| Yukon Deg Xinag | ing-001 | tthaqʼidz dixił’oniy |
| Kuskokwim Deg Xinag | ing-002 | tthaqʼidz dixił’oniy |
| Taqbaylit | kab-000 | tthara |
| tthʼigaʼ kenagaʼ | taa-000 | tthatokhulaya |
| Emakhua | vmw-000 | tthatta |
| tthʼigaʼ kenagaʼ | taa-000 | tthattheeł |
| Deg Xinag | ing-000 | tthatthing |
| Yukon Deg Xinag | ing-001 | tthatthing |
| Kuskokwim Deg Xinag | ing-002 | tthatthing |
| Emakhua | vmw-000 | tthatto |
| Yukon Deg Xinag | ing-001 | tthatux xut’an |
| Emakhua | vmw-000 | tthava |
| Emakhua | vmw-000 | tthawa |
| Emakhua | vmw-000 | tthawana |
| Emakhua | vmw-000 | tthawatthawa |
| Emakhua | vmw-000 | tthawelo |
| Emakhua | vmw-000 | tthawiya |
| Deg Xinag | ing-000 | tthax |
| Yukon Deg Xinag | ing-001 | tthax |
| Kuskokwim Deg Xinag | ing-002 | tthax |
| Deg Xinag | ing-000 | tthʼax nithidaddh |
| Yukon Deg Xinag | ing-001 | tthʼax nithidaddh |
| Kuskokwim Deg Xinag | ing-002 | tthʼax nithidaddh |
| Deg Xinag | ing-000 | tthʼax qonʼ |
| Yukon Deg Xinag | ing-001 | tthʼax qonʼ |
| Kuskokwim Deg Xinag | ing-002 | tthʼax qonʼ |
| Emakhua | vmw-000 | tthaya |
| Dinjii Zhuh K’yuu | gwi-000 | tthał |
| Deg Xinag | ing-000 | tthał |
| Yukon Deg Xinag | ing-001 | tthał |
| Kuskokwim Deg Xinag | ing-002 | tthał |
| Deg Xinag | ing-000 | tthałghunʼ |
| Yukon Deg Xinag | ing-001 | tthałghunʼ |
| Kuskokwim Deg Xinag | ing-002 | tthałghunʼ |
| Deg Xinag | ing-000 | tthał yet |
| Yukon Deg Xinag | ing-001 | tthał yet |
| Kuskokwim Deg Xinag | ing-002 | tthał yet |