| Afrikaans | afr-000 | C.J. Langenhoven |
| ISO 639-3 | art-001 | cjm |
| ISO 639-PanLex | art-274 | cjm-000 |
| Deutsch | deu-000 | CJ Mac |
| English | eng-000 | CJ Mac |
| English | eng-000 | CJMF-FM |
| français | fra-000 | CJMF-FM |
| English | eng-000 | C. J. Miles |
| español | spa-000 | C.J. Miles |
| English | eng-000 | CJMS |
| français | fra-000 | CJMS |
| English | eng-000 | CJMT-TV |
| ISO 639-3 | art-001 | cjn |
| ISO 639-PanLex | art-274 | cjn-000 |
| English | eng-000 | C. J. Nitkowski |
| Esperanto | epo-000 | -ĉjo |
| ISO 639-3 | art-001 | cjo |
| ISO 639-PanLex | art-274 | cjo-000 |
| cotiria | gvc-000 | cjoa |
| cotiria | gvc-000 | cjoa sehe |
| lenghe furlane | fur-000 | cjocolate |
| Talossan | tzl-000 | cjodatxuva |
| Talossan | tzl-000 | cjodatxuval |
| Talossan | tzl-000 | cjol |
| lenghe furlane | fur-000 | cjoli |
| Curco | art-168 | cjon |
| español | spa-000 | cjón. |
| mokshenj kalj | mdf-001 | cjonga |
| mokshenj kalj | mdf-001 | cjongakjarjks |
| mokshenj kalj | mdf-001 | cjongasa erjaj |
| lenghe furlane | fur-000 | Cjons |
| Talossan | tzl-000 | Cjopatra |
| lenghe furlane | fur-000 | Cjopris e Viscon |
| cotiria | gvc-000 | cjora |
| mokshenj kalj | mdf-001 | cjora |
| Komi | kpv-001 | cjorid |
| russkij | rus-001 | čjort |
| Talossan | tzl-000 | cjosch |
| Talossan | tzl-000 | cjoscha |
| Talossan | tzl-000 | cjóscharh |
| lenghe furlane | fur-000 | cjosse |
| Talossan | tzl-000 | cjovan |
| Talossan | tzl-000 | cjöven |
| Talossan | tzl-000 | Cjövnahaun |
| Nederlands | nld-000 | CJP |
| ISO 639-3 | art-001 | cjp |
| filename extensions | art-335 | cjp |
| ISO 639-PanLex | art-274 | cjp-000 |
| ISO 639-PanLex | art-274 | cjp-001 |
| TechTarget file types | art-336 | CJP-WinOnCD-Project-File-Sonic-Solutions |
| English | eng-000 | CJPX-FM |
| English | eng-000 | CJQQ-FM |
| svenska | swe-000 | CJQQ-FM |
| ISO 639-3 Retired Code Elements | art-324 | cjr |
| English | eng-000 | C. J. Ramone |
| suomi | fin-000 | C. J. Ramone |
| português | por-000 | C. J. Ramone |
| svenska | swe-000 | C. J. Ramone |
| français | fra-000 | C.J. Ramone |
| italiano | ita-000 | C.J. Ramone |
| polski | pol-000 | C.J. Ramone |
| slovenčina | slk-000 | C.J. Ramone |
| español | spa-000 | C.J. Ramone |
| Peace Corps 2007 Tamazight | tzm-009 | cjrt |
| English | eng-000 | CJRT-FM |
| français | fra-000 | CJRT-FM |
| English | eng-000 | C.J.S. |
| ISO 639-3 | art-001 | cjs |
| ISO 639 | art-005 | cjs |
| ISO 639-PanLex | art-274 | cjs-000 |
| ISO 639-PanLex | art-274 | cjs-001 |
| English | eng-000 | C. J. Sanders |
| polski | pol-000 | C. J. Sanders |
| English | eng-000 | C. J. Sansom |
| français | fra-000 | C. J. Sansom |
| hrvatski | hrv-000 | C. J. Sansom |
| italiano | ita-000 | C. J. Sansom |
| svenska | swe-000 | C.J. Sansom |
| English | eng-000 | C. J. Snare |
| italiano | ita-000 | C.J. Snare |
| Jñatio | maz-000 | Cju |
| Chiquihuitlan | maq-000 | cjuarcun |
| nquiva | poe-000 | cjuaxroan |
| Talossan | tzl-000 | cjucʼh |
| Talossan | tzl-000 | cjucʼharh |
| lenghe furlane | fur-000 | cjucjâ |
| Talossan | tzl-000 | cjuctarh |
| Deutsch | deu-000 | C-Jugend |
| Talossan | tzl-000 | cjuglh |
| Talossan | tzl-000 | cjuhéu |
| Talossan | tzl-000 | cjuing |
| mokshenj kalj | mdf-001 | cjukornja |
| mokshenj kalj | mdf-001 | cjulan |
| mokshenj kalj | mdf-001 | cjulkat |
| Talossan | tzl-000 | cjümüt |
| mokshenj kalj | mdf-001 | cjurbar |
| mokshenj kalj | mdf-001 | cjurbaronj |
| mokshenj kalj | mdf-001 | cjurbaronj af sodaj |
| mokshenj kalj | mdf-001 | cjurbaronj sodaj |
| mokshenj kalj | mdf-001 | cjurbaronj sodyma |
| mokshenj kalj | mdf-001 | cjurbaronj srafty |
| mokshenj kalj | mdf-001 | cjurbaru |
| cotiria | gvc-000 | cjuri |
| cotiria | gvc-000 | cjuri cahsaro |
| bălgarski ezik | bul-001 | Cjurich |
| Çăvaşla | chv-001 | Cjurich |
| russkij | rus-001 | Cjurich |
| русский | rus-000 | Cjurikh |
| українська | ukr-000 | Cjurikh |
| cotiria | gvc-000 | cjuri wahwa |
| cotiria | gvc-000 | cjuri wʉhʉ |
| biełaruskaja łacinka | bel-002 | Cjurych |
| Latynytsia | ukr-001 | Cjurych |
| cotiria | gvc-000 | cju saneca |
| Talossan | tzl-000 | cjusour |
| Shimayumuta | ryn-000 | cjuu |
| Talossan | tzl-000 | Cjuva |
| Talossan | tzl-000 | cjuviglh |
| russkij | rus-001 | čjúvstvovat' |
| russkij | rus-001 | čjúvstvovat' sebjá |
| ISO 639-3 | art-001 | cjv |
| ISO 639-PanLex | art-274 | cjv-000 |
| ISO 639-PanLex | art-274 | cjv-001 |
| ISO 639-3 | art-001 | cjy |
| ISO 639-PanLex | art-274 | cjy-000 |
| ISO 639-PanLex | art-274 | cjy-001 |
| ISO 639-PanLex | art-274 | cjy-002 |
| Biaomin | bje-000 | cʲɑu¹ |
| Shilluk | shk-000 | čʲɛm |
| cotiria | gvc-000 | cjʉ |
| cotiria | gvc-000 | cjʉara |
| 한국어 | kor-000 | CJ 그룹 |
| 日本語 | jpn-000 | CJグループ |
| 日本語 | jpn-000 | CJボーランド |
| 普通话 | cmn-000 | CJ希杰集团 |
| anicinâbemowin | alq-000 | -ck- |
| English | eng-000 | C.&K. |
| ISO 3166 alpha | art-006 | CK |
| English | eng-000 | CK |
| Soomaaliga | som-000 | CK |
| English | eng-000 | Ck |
| filename extensions | art-335 | ck |
| English | eng-000 | ck |
| English | eng-000 | ck. |
| filename extensions | art-335 | ck1 |
| TechTarget file types | art-336 | CK1-iD-Apogee-Commander-Keen-1-data |
| filename extensions | art-335 | ck2 |
| TechTarget file types | art-336 | CK2-iD-Apogee-Commander-Keen-2-data |
| filename extensions | art-335 | ck3 |
| TechTarget file types | art-336 | CK3-iD-Apogee-Commander-Keen-3-data |
| filename extensions | art-335 | ck4 |
| TechTarget file types | art-336 | CK4-iD-Apogee-Commander-Keen-4-data |
| English | eng-000 | CK5 |
| 日本語 | jpn-000 | CK5 |
| filename extensions | art-335 | ck5 |
| TechTarget file types | art-336 | CK5-iD-Apogee-Commander-Keen-5-data |
| filename extensions | art-335 | ck6 |
| TechTarget file types | art-336 | CK6-iD-Apogee-Commander-Keen-6-data |
| filename extensions | art-335 | ck9 |
| TechTarget file types | art-336 | CK9-Cook-n-Cookbook-Backup-File |
| Fox | sac-001 | -`ckä- |
| Fox | sac-001 | -`ckā- |
| English | eng-000 | CKA |
| mundaŋ | mua-000 | Cka |
| ISO 639-3 Retired Code Elements | art-324 | cka |
| filename extensions | art-335 | cka |
| la lojban. | jbo-000 | cka |
| toskërishte | als-000 | çka |
| toskërishte | als-000 | ç’ka |
| slovenčina | slk-000 | čka |
| Cha7³¹ tinyan³ | ctz-000 | čkā̃- |
| Kunza | kuz-000 | ckaabar |
| Kunza | kuz-000 | ckaa-bart-an-tur |
| Kunza | kuz-000 | ckaala |
| suomi | fin-000 | C-kääntäjä |
| Kunza | kuz-000 | ckaapin |
| Kunza | kuz-000 | ckaâpin |
| Kunza | kuz-000 | ckaapir |
| Kunza | kuz-000 | ckaari |
| Kunza | kuz-000 | ckaâri |
| Thavung | thm-000 | ckaat¹ |
| Kunza | kuz-000 | ckaâya |
| Kunza | kuz-000 | cka-bar |
| Kunza | kuz-000 | ckaba-tur |
| la lojban. | jbo-000 | ckabu |
| Kunza | kuz-000 | ckabur |
| Kunza | kuz-000 | cka-bu-tur |
| English | eng-000 | CKAC |
| français | fra-000 | CKAC |
| Tokharian A | xto-000 | ckâcar |
| Tokharian A | xto-000 | ckācar |
| Kunza | kuz-000 | ckachir |
| Loglan | jbo-001 | ckaciu |
| Kunza | kuz-000 | ckacka |
| kuśiññe | txb-000 | ckāckai |
| Kunza | kuz-000 | ckac-kar |
| Kunza | kuz-000 | ckackar |
| Kunza | kuz-000 | ckackasima |
| Kunza | kuz-000 | ckac-ka-sin-tur |
| Kunza | kuz-000 | ckac-ka-tur |
| Kunza | kuz-000 | ckackchi |
| Kunza | kuz-000 | ckackma |
| Kunza | kuz-000 | ckack-na-tur |
| kuśiññe | txb-000 | ckācko |
| Kunza | kuz-000 | ckack-tchi |
| Kunza | kuz-000 | ckacktchi |
| Kunza | kuz-000 | ckacktchir |
| Kunza | kuz-000 | ckack-tur |
| Kunza | kuz-000 | ckacktur |
| Loglan | jbo-001 | ckacle |
| TechTarget file types | art-336 | CKA-Comfort-Keys-Database-Comfort-Software-Group |
| Loglan | jbo-001 | ckafe |
| la lojban. | jbo-000 | ckafi |
| Loglan | jbo-001 | ckafi |
| Loglan | jbo-001 | ckaflo |
| Mashco Piro | cuj-000 | c̷kaha |
| Kunza | kuz-000 | ckai-ckai |
| Kunza | kuz-000 | ckaickai |
| Kunza | kuz-000 | ckaimaiñir |
| Kunza | kuz-000 | ckai-mai-ɲir |
| Kunza | kuz-000 | ckaipi |
| Kunza | kuz-000 | ckair |
| Kunza | kuz-000 | ckaitchi |
| Kunza | kuz-000 | ckai-yi |
| la lojban. | jbo-000 | ckaji |
| la lojban. | jbo-000 | ckaku'a |
| Kunza | kuz-000 | ckalal |
| Kunza | kuz-000 | ckalanna |
| hrvatski | hrv-000 | čkalj |
| Esperanto | epo-000 | Ĉkalovsk |
| čeština | ces-000 | Čkalovskaja |
| Kunza | kuz-000 | ckamai |
| Loglan | jbo-001 | ckamou |
| Kunza | kuz-000 | ckamur |
| Tâi-gí | nan-003 | C kan |
| Kunza | kuz-000 | ckan |
| Papora | ppu-000 | ckan |
| la lojban. | jbo-000 | ckana |
| Kunza | kuz-000 | ckanascka |
| Kunza | kuz-000 | ckanc-ka-ta |
| Tanêksąyaa ade | bll-000 | čkané |
| Kunza | kuz-000 | ckani |
| slovenčina | slk-000 | čkanie |
| anicinâbemowin | alq-000 | ckanj |
| Kunza | kuz-000 | ckannai |
| Kunza | kuz-000 | ckannau |
| Loglan | jbo-001 | ckano |
| Kunza | kuz-000 | ckanti |
| Kunza | kuz-000 | ckan-tur |
| Kunza | kuz-000 | ckantur |
| Kunza | kuz-000 | ckapar |
| Kunza | kuz-000 | cka-pa-tur |
| Kunza | kuz-000 | ckap-cki-tur |
| la lojban. | jbo-000 | ckape |
| Kunza | kuz-000 | ckapin |
| Kunza | kuz-000 | ckapiniatin |
| Kunza | kuz-000 | cka-pir |
| Kunza | kuz-000 | ckapir |
| Kunza | kuz-000 | ckap-na-tur |
| English | eng-000 | c kapsarivari mz |
| Kunza | kuz-000 | ckap-tur |
| Kunza | kuz-000 | cka-pur |
| Kunza | kuz-000 | ckapur |
| Kunza | kuz-000 | cka-rac-kar-tur |
| Kunza | kuz-000 | ckarao |
| Kunza | kuz-000 | cka-ra-tur |
| Kunza | kuz-000 | ckarau |
| Kunza | kuz-000 | cka-ri |
| Kunza | kuz-000 | ckari |
| Kunza | kuz-000 | ckarisur |
| Pawnee | paw-000 | ckaritu7 |
| Kunza | kuz-000 | ckaru |
| azərbaycanca | azj-000 | C-kaset |
| kreyòl ayisyen | hat-000 | C-kasèt |
| euskara | eus-000 | C-kasete |
| shqip | sqi-000 | C-kasetë |
| suomi | fin-000 | C-kasetti |
| Kunza | kuz-000 | ckas-sa |
| Afrikaans | afr-000 | C-kasset |
| la lojban. | jbo-000 | ckasu |
| anicinâbemowin | alq-000 | ckat |
| Kunza | kuz-000 | ckat |
| hanácké | ces-002 | čkat |
| slovenčina | slk-000 | čkať |
| Kunza | kuz-000 | cka-tal-na-tur |
| Kunza | kuz-000 | cka-ta-sen-cul |
| Kunza | kuz-000 | ckatchacka |
| Kunza | kuz-000 | ckatchir |
| Kunza | kuz-000 | ckatchunti |
| Kunza | kuz-000 | ckati |
| Kunza | kuz-000 | cka-tir |
| Kunza | kuz-000 | ckatir |
| Kunza | kuz-000 | ckat-na-tur |
| Kunza | kuz-000 | ckatnu |