| TechTarget file types | art-336 | TTM-TeleType-GPS-Location-File-TeleType-GPS |
| Taqbaylit | kab-000 | ttmuquleg |
| Riff | rif-000 | ttmənna |
| Riff | rif-000 | ttmənyaŧ |
| Peace Corps 2007 Tamazight | tzm-009 | ṭṭmɛ |
| Ket | ket-000 | t-tn |
| ISO 639-3 | art-001 | ttn |
| filename extensions | art-335 | ttn |
| atembwəʼwi | azo-000 | t̂t̂̂n̂ |
| ISO 639-PanLex | art-274 | ttn-000 |
| TechTarget file types | art-336 | TTN-Bentley-InRoads-topologically-triangulated-network-file |
| mədəŋkyɛ | bgj-000 | t̆̌tnda |
| English | eng-000 | TTNET |
| English | eng-000 | TTNet Beykoz |
| el maghribïya | ary-001 | Ttnîn |
| Deg Xinag | ing-000 | -ttniłtsʼeg |
| Yukon Deg Xinag | ing-001 | -ttniłtsʼeg |
| Kuskokwim Deg Xinag | ing-002 | -ttniłtsʼeg |
| atembwəʼwi | azo-000 | t̂t‿‿ n̂pu n̂nɡ̂b̂ |
| TechTarget file types | art-336 | TTN-Tartan-Generator-saved-tartan |
| mədəŋkyɛ | bgj-000 | t̆̌tnu |
| mədəŋkyɛ | bgj-000 | t̆̌tnɡaɨ |
| ISO 3166 alpha | art-006 | TTO |
| English | eng-000 | TTO |
| ISO 639-3 | art-001 | tto |
| filename extensions | art-335 | tto |
| Hakata-ben | jpn-125 | tto |
| Nederlands | nld-000 | tto |
| Puluwatese | puw-000 | tto |
| ISO 639-PanLex | art-274 | tto-000 |
| Kunza | kuz-000 | ttockomar |
| TechTarget file types | art-336 | TTO-Client-access-data-specification-file-AS-400-Server-to-Client |
| Hangungmal | kor-001 | Ttodogas |
| Hangungmal | kor-001 | Ttodogaseu |
| Han’gugŏ | kor-004 | Ttodogasŭ |
| Emakhua | vmw-000 | ttofaari |
| Oluganda | lug-000 | ttofali |
| Hangungmal | kor-001 | Ttogas |
| Hangungmal | kor-001 | Ttogaseu |
| Han’gugŏ | kor-004 | Ttogasŭ |
| Emakhua | vmw-000 | ttokattoka |
| Emakhua | vmw-000 | ttokeeyo |
| Kunza | kuz-000 | ttok-ko |
| Emakhua | vmw-000 | ttokottha |
| Emakhua | vmw-000 | ttokotthela |
| Emakhua | vmw-000 | ttokotthelana |
| Emakhua | vmw-000 | ttokotthelo |
| Emakhua | vmw-000 | ttokuña |
| Emakhua | vmw-000 | ttokutta, |
| Pashtu | pbt-000 | ttol |
| Pashtu | pbt-000 | ttolawem |
| Pashtu | pbt-000 | ttoléezzem |
| Pashtu | pbt-000 | ttolgei |
| Emakhua | vmw-000 | ttolusa |
| Emakhua | vmw-000 | ttoluwa |
| Emakhua | vmw-000 | ttoluxa |
| Pashtu | pbt-000 | ttolwaak |
| el maghribïya | ary-001 | ttôma |
| português | por-000 | ttomar banho |
| Emakhua | vmw-000 | ttomokoka |
| Emakhua | vmw-000 | ttomokola |
| Emakhua | vmw-000 | ttomokwaa |
| Iu Mienh | ium-000 | tT~oN |
| Peawa | gdr-009 | tton 3tk35da5 |
| Emakhua | vmw-000 | ttona |
| Kajin M̧ajeļ | mah-000 | ttōņak |
| Kunza | kuz-000 | ttonck-tur |
| Emakhua | vmw-000 | ttonda |
| Emakhua | vmw-000 | ttondiha |
| Oluganda | lug-000 | ttondo |
| Cicipu | awc-000 | ttóndó |
| Emakhua | vmw-000 | ttondora |
| Emakhua | vmw-000 | ttondosa |
| Emakhua | vmw-000 | ttondova |
| Emakhua | vmw-000 | ttondoviha |
| Emakhua | vmw-000 | ttondovihela |
| Emakhua | vmw-000 | ttondoxa |
| Emakhua | vmw-000 | ttongosa |
| Emakhua | vmw-000 | ttongoxa |
| Gwere | gwr-000 | ttono |
| Gidra | gdr-000 | tton ətkəɲdɛɲ |
| shànggǔ hànyǔ | och-001 | tto[n]ʔ |
| Takuu | nho-000 | ttoo |
| Emakhua | vmw-000 | ttooci |
| Sabu | hvn-000 | ttooe |
| Oluganda | lug-000 | ttooke |
| Emakhua | vmw-000 | ttoola |
| Emakhua | vmw-000 | ttoolattoola |
| Emakhua | vmw-000 | ttoolela |
| Emakhua | vmw-000 | ttoolo |
| Emakhua | vmw-000 | ttoolyaa |
| Kajin M̧ajeļ | mah-000 | ttoon |
| Emakhua | vmw-000 | ttooña |
| Emakhua | vmw-000 | ttoondo |
| Emakhua | vmw-000 | ttoone |
| Emakhua | vmw-000 | ttoope |
| truk | chk-000 | Ttooyis |
| English | eng-000 | T-top |
| Emakhua | vmw-000 | ttope |
| English | eng-000 | T-topper |
| Emakhua | vmw-000 | ttora |
| Hangungmal | kor-001 | Ttorbakjwi |
| bokmål | nob-000 | TT-ordning |
| Hangungmal | kor-001 | Ttoreubakjwi |
| Emakhua | vmw-000 | ttorola |
| davvisámegiella | sme-000 | TT-ortnet |
| Han’gugŏ | kor-004 | Ttorŭbakjwi |
| Kunza | kuz-000 | ttosi |
| Oluganda | lug-000 | ttosi |
| Kunza | kuz-000 | ttosti |
| Emakhua | vmw-000 | ttotokwaa |
| Emakhua | vmw-000 | ttotta |
| Emakhua | vmw-000 | ttottha |
| Emakhua | vmw-000 | ttotthaniha |
| Emakhua | vmw-000 | ttotthelela |
| Emakhua | vmw-000 | ttottho |
| Emakhua | vmw-000 | ttottokola |
| Emakhua | vmw-000 | ttottokora |
| Emakhua | vmw-000 | ttottomela |
| Emakhua | vmw-000 | ttottomoka |
| Emakhua | vmw-000 | TTOTTOMOKO |
| Emakhua | vmw-000 | ttottomokora |
| Emakhua | vmw-000 | ttottoori |
| Emakhua | vmw-000 | ttottopela |
| Emakhua | vmw-000 | ttottopyaa |
| Emakhua | vmw-000 | TTOTTOROO |
| Emakhua | vmw-000 | ttottovela |
| ʻgana Tuvalu | tvl-000 | t/tou/ |
| Carolinian | cal-000 | t-tow |
| Autu | kmn-000 | t-tow |
| Carolinian | cal-000 | ttow |
| Puluwatese | puw-000 | ttow |
| Autu | kmn-000 | t-towleyakw |
| Autu | kmn-000 | t-towpret |
| Puluwatese | puw-000 | ttow-(púŋ) |
| Mortlockese | mrl-000 | ttowu |
| Kunza | kuz-000 | ttoy-ur |
| UNDP Country Codes | art-294 | TTP |
| English | eng-000 | TTP |
| italiano | ita-000 | TTP |
| español | spa-000 | TTP |
| ISO 639-3 | art-001 | ttp |
| filename extensions | art-335 | ttp |
| ISO 639-PanLex | art-274 | ttp-000 |
| TechTarget file types | art-336 | TTP-Atari-Falcon-Application |
| TechTarget file types | art-336 | TTP-Atari-TOS-Executable-With-Parameters-Atari |
| English | eng-000 | TTP diagram |
| ISO 3166-2 | art-416 | TT-PED |
| ISO 3166-2 | art-416 | TT-POS |
| English | eng-000 | TT Pro League |
| español | spa-000 | TT Pro League |
| ISO 3166-2 | art-416 | TT-PRT |
| TechTarget file types | art-336 | TTP-Telelogic-tau-project |
| ISO 3166-2 | art-416 | TT-PTF |
| TechTarget file types | art-336 | TTP-TimeTraces-Project-TwoLogs |
| mədəŋkyɛ | bgj-000 | t̆̌tpuɨm̆̌ |
| English | eng-000 | TTP valve |
| ISO 639-3 | art-001 | ttq |
| ISO 639 | art-005 | ttq |
| ISO 639-PanLex | art-274 | ttq-000 |
| ISO 639-PanLex | art-274 | ttq-001 |
| ISO 639-PanLex | art-274 | ttq-002 |
| Riff | rif-000 | ttqašia |
| English | eng-000 | TTR |
| ISO 639-3 | art-001 | ttr |
| filename extensions | art-335 | ttr |
| suomi | fin-000 | ttr |
| Peace Corps 2007 Tamazight | tzm-009 | ttr |
| ISO 639-PanLex | art-274 | ttr-000 |
| ISO 639-PanLex | art-274 | ttr-001 |
| Esperanto | epo-000 | T-trabo |
| English | eng-000 | T-track |
| Taqbaylit | kab-000 | ttʼrad |
| English | eng-000 | TT radar |
| Taqbaylit | kab-000 | ttʼradat |
| español | spa-000 | ttráfico de órganos |
| Deutsch | deu-000 | T-Träger |
| Riff | rif-000 | tʼtʼřam |
| Peace Corps 2007 Tamazight | tzm-009 | ttran |
| Riff | rif-000 | tʼtʼrankiř |
| English | eng-000 | ttranscription |
| English | eng-000 | T transform |
| Malti | mlt-000 | ttrattat |
| Riff | rif-000 | ttřaŧa |
| ISO 3166-2 | art-416 | TT-RCM |
| santostefanese | ita-002 | ttrìcchi’ e ttràcchi’ |
| English | eng-000 | T-trigger |
| Latina Nova | lat-003 | t. trigonus |
| Uyghurche | uig-001 | ttrikarbosianin |
| Malti | mlt-000 | ttrimmja |
| filename extensions | art-335 | ttro |
| svenska | swe-000 | T-tröja |
| svenska | swe-000 | t-tröja |
| TechTarget file types | art-336 | TTRO-Mac-File-Type |
| TechTarget file types | art-336 | TTRO-ReadMe-File |
| English | eng-000 | TTRS |
| TechTarget file types | art-336 | TTR-TeeTree-Office-File |
| TechTarget file types | art-336 | TTR-TrueType-Font |
| Peace Corps 2007 Tamazight | tzm-009 | ṭṭrz |
| bokmål | nob-000 | t-trøye |
| العربية | arb-000 | TTS |
| bălgarski ezik | bul-001 | TTS |
| 普通话 | cmn-000 | TTS |
| dansk | dan-000 | TTS |
| Deutsch | deu-000 | TTS |
| ελληνικά | ell-000 | TTS |
| English | eng-000 | TTS |
| euskara | eus-000 | TTS |
| français | fra-000 | TTS |
| עברית | heb-000 | TTS |
| Hindi | hin-002 | TTS |
| hrvatski | hrv-000 | TTS |
| bahasa Indonesia | ind-000 | TTS |
| 日本語 | jpn-000 | TTS |
| Hangungmal | kor-001 | TTS |
| lietuvių | lit-000 | TTS |
| latviešu | lvs-000 | TTS |
| Makedonski jazik | mkd-001 | TTS |
| Nederlands | nld-000 | TTS |
| bokmål | nob-000 | TTS |
| پښتو ژبه | pbu-000 | TTS |
| polski | pol-000 | TTS |
| português | por-000 | TTS |
| română | ron-000 | TTS |
| español | spa-000 | TTS |
| srpski | srp-001 | TTS |
| svenska | swe-000 | TTS |
| ภาษาไทย | tha-000 | TTS |
| Türkçe | tur-000 | TTS |
| اردو | urd-000 | TTS |
| tiếng Việt | vie-000 | TTS |
| Bahasa Malaysia | zsm-000 | TTS |
| eesti | ekk-000 | TTS- |
| ISO 639-3 | art-001 | tts |
| ISO 639 | art-005 | tts |
| filename extensions | art-335 | tts |
| ISO 639-PanLex | art-274 | tts-000 |
| ISO 639-PanLex | art-274 | tts-001 |
| Dunanmunui | yoi-002 | ttsa |
| Dunanmunui | yoi-002 | ttsaa |
| shànggǔ hànyǔ | och-001 | ttsajʔ |
| Taqbaylit | kab-000 | ttsar |
| Proto-Ao | njo-003 | *t-tsaŋ |
| Deutsch | deu-000 | TT-Schläger |
| English | eng-000 | TTS code |
| atembwəʼwi | azo-000 | t̂tseem̂ |
| Taqbaylit | kab-000 | ttsel |
| Taqbaylit | kab-000 | ttser |
| Nivaclé | cag-000 | ttsewteyče |
| English | eng-000 | TTSF |
| ISO 3166-2 | art-416 | TT-SFO |
| ISO 3166-2 | art-416 | TT-SGE |
| shànggǔ hànyǔ | och-001 | ttsheng |
| shànggǔ hànyǔ | och-001 | ttshuʔ |
| Maaya Tʼaan | yua-000 | T-Tsíimin |
| Maaya Tʼaan | yua-000 | t-tsiimin |
| Türkçe | tur-000 | TTS İnsan Sesleri |
| ISO 3166-2 | art-416 | TT-SIP |
| ISO 3166-2 | art-416 | TT-SJL |
| Ethnologue Language Names | art-330 | TTSL |
| el maghribïya | ary-001 | ttsllf |
| English | eng-000 | TTS Mode ID |
| Türkçe | tur-000 | TTS Modu Kimliği |
| TechTarget file types | art-336 | TT-Star-Trek-Armada-Game-Techtree-Information |
| English | eng-000 | TTS Trenčín |
| Nederlands | nld-000 | TTS Trenčín |
| TechTarget file types | art-336 | TTS-TrueTime-session-file |
| English | eng-000 | TTS Voices |
| Taqbaylit | kab-000 | ttswadres |
| Peace Corps 2007 Tamazight | tzm-009 | ttswiq |
| shànggǔ hànyǔ | och-001 | ttsəp |
| English | eng-000 | TTT |
| Esperanto | epo-000 | TTT |
| latine | lat-000 | TTT |
| ISO 639-3 | art-001 | ttt |
| ISO 639 | art-005 | ttt |
| filename extensions | art-335 | ttt |
| Esperanto | epo-000 | ttt |
| ISO 639-PanLex | art-274 | ttt-000 |
| ISO 639-PanLex | art-274 | ttt-001 |
| ISO 639-PanLex | art-274 | ttt-002 |
| filename extensions | art-335 | ttta |
| TechTarget file types | art-336 | TTTA-Mac-File-Type |
| English | eng-000 | TTT curve |
| English | eng-000 | TTT diagram |
| dansk | dan-000 | TTT Eindhoven |
| bokmål | nob-000 | TTT Eindhoven |
| Esperanto | epo-000 | TTT-ejo |
| Bangi | bni-000 | tttêkô |
| Esperanto | epo-000 | TTT-estro |
| Esperanto | epo-000 | ttt-estro |
| Dene-thah | xsl-000 | Ttthembaachah |
| Dene-thah | xsl-000 | Ttthembatthie |
| TechTarget file types | art-336 | TT-ThinkTank-file |
| English | eng-000 | TTTL |
| IETF language tags | art-420 | ttt-Latn |
| Esperanto | epo-000 | TTT-legilo |
| ISO 3166-2 | art-416 | TT-TOB |