编辑“︁ISO 639:o”︁

{{ISO 639-3 header|O}}
|-
![[ISO 639:oaa|oaa]] {{anchor|oaa}}
| || ||I/L|| || ||Orok|| || ||鄂罗克语|| ||
|-
![[ISO 639:oac|oac]] {{anchor|oac}}
| || ||I/L|| || ||Oroch|| || ||鄂罗奇语|| ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:oar|oar]] {{anchor|oar}}
| || ||I/A|| || ||Aramaic, Old|| || ||古阿拉米语|| ||Altaramäisch
|-{{ISO 639-3 style|I|H}}
![[ISO 639:oav|oav]] {{anchor|oav}}
| || ||I/H|| || ||Avar, Old|| || ||古阿瓦尔语|| ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:obi|obi]] {{anchor|obi}}
| || ||I/E|| || ||Obispeño|| || || || ||
|-
![[ISO 639:obk|obk]] {{anchor|obk}}
| || ||I/L|| || ||Southern Bontok|| || || || ||
|-
![[ISO 639:obl|obl]] {{anchor|obl}}
| || ||I/L|| || ||Oblo|| || || || ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:obm|obm]] {{anchor|obm}}
| || ||I/A|| || ||Moabite|| || ||摩押语|| ||
|-
![[ISO 639:obo|obo]] {{anchor|obo}}
| || ||I/L|| || ||Manobo, Obo|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:obr|obr]] {{anchor|obr}}
| || ||I/H|| || ||Burmese, Old|| || ||古缅甸语|| ||Altburmesisch
|-{{ISO 639-3 style|I|H}}
![[ISO 639:obt|obt]] {{anchor|obt}}
| || ||I/H|| || ||Breton, Old|| || ||古布列塔尼语|| ||Altbretonisch
|-
![[ISO 639:obu|obu]] {{anchor|obu}}
| || ||I/L|| || ||Obulom|| || || || ||
|-
![[ISO 639:oca|oca]] {{anchor|oca}}
| || ||I/L|| || ||Ocaina|| ||ocaina|| || ||
|-
!([[ISO 639:occ|occ]]) {{anchor|occ}}
| || || || || ||Occidental|| || || || ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:och|och]] {{anchor|och}}
| || ||I/A||Chinese|| ||Old Chinese|| || ||[[:上古汉语|上古漢語]]|| ||Altchinesisch
|-
![[ISO 639:oci|oci]] {{anchor|oci}}
|oc||oci||I/L||Indo-European||occitan||Occitan (post 1500)||occitan (après 1500)||occitano||奥克西唐语; 奥克西坦语; 奥克语||окситанский||Okzitanisch
|-{{ISO 639-3 style|I|H}}
![[ISO 639:oco|oco]] {{anchor|oco}}
| || ||I/H|| || ||Cornish, Old|| || ||古康沃尔语|| ||
|-
![[ISO 639:ocu|ocu]] {{anchor|ocu}}
| || ||I/L|| || ||Matlatzinca, Atzingo|| || || || ||
|-
![[ISO 639:oda|oda]] {{anchor|oda}}
| || ||I/L|| || ||Odut|| || || || ||
|-
![[ISO 639:odk|odk]] {{anchor|odk}}
| || ||I/L|| || ||Od|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:odt|odt]] {{anchor|odt}}
| || ||I/H|| || ||Dutch, Old|| || ||古荷兰语|| ||
|-
![[ISO 639:odu|odu]] {{anchor|odu}}
| || ||I/L|| || ||Odual|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:ofo|ofo]] {{anchor|ofo}}
| || ||I/E|| || ||Ofo||ofo|| || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:ofs|ofs]] {{anchor|ofs}}
| || ||I/H||Friesisch|| ||Frisian, Old|| || ||古弗里西亚语|| ||Altfriesisch
|-
![[ISO 639:ofu|ofu]] {{anchor|ofu}}
| || ||I/L|| || ||Efutop|| || || || ||
|-
![[ISO 639:ogb|ogb]] {{anchor|ogb}}
| || ||I/L|| || ||Ogbia|| || || || ||
|-
![[ISO 639:ogc|ogc]] {{anchor|ogc}}
| || ||I/L|| || ||Ogbah|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:oge|oge]] {{anchor|oge}}
| || ||I/H|| || ||Georgian, Old|| || ||古格鲁吉亚语|| ||Altgeorgisch
|-
![[ISO 639:ogg|ogg]] {{anchor|ogg}}
| || ||I/L|| || ||Ogbogolo|| || || || ||
|-
!([[ISO 639:ogn|ogn]]) {{anchor|ogn}}
| || || || || ||Ogan|| || || || ||
|-
![[ISO 639:ogo|ogo]] {{anchor|ogo}}
| || ||I/L|| || ||Khana|| || || || ||
|-
![[ISO 639:ogu|ogu]] {{anchor|ogu}}
| || ||I/L|| || ||Ogbronuagum|| || || || ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:oht|oht]] {{anchor|oht}}
| || ||I/A|| || ||Hittite, Old|| || ||古赫梯语|| ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:ohu|ohu]] {{anchor|ohu}}
| || ||I/H|| || ||Hungarian, Old|| || ||古匈牙利语|| ||
|-
![[ISO 639:oia|oia]] {{anchor|oia}}
| || ||I/L|| || ||Oirata|| || || ||оирата||
|-
![[ISO 639:oin|oin]] {{anchor|oin}}
| || ||I/L|| || ||One, Inebu|| || || || ||
|-
![[ISO 639:ojb|ojb]] {{anchor|ojb}}
| || ||I/L|| || Anishinaabemowin (Ojibwemowin) ||Ojibwa, Northwestern|| || || || ||
|-
![[ISO 639:ojc|ojc]] {{anchor|ojc}}
| || ||I/L|| || Anishinaabemowin (Ojibwemowin) ||Ojibwa, Central|| || || || ||
|-
![[ISO 639:ojg|ojg]] {{anchor|ojg}}
| || ||I/L|| || Nishnaabemwin (Jibwemwin) ||Ojibwa, Eastern|| || || || ||
|-{{ISO 639-3 style|M|L}}
![[ISO 639:oji|oji]] {{anchor|oji}}
|oj||oji||M/L||Cree||ᐊᓂᔑᓇᐯᒧᐎᓐ (Anishinaabemowin)||Ojibwa||ojibwa||ojibwa||奥吉布瓦语||оджибва||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:ojp|ojp]] {{anchor|ojp}}
| || ||I/H|| || ||Japanese, Old|| || ||古日语|| ||
|-
![[ISO 639:ojs|ojs]] {{anchor|ojs}}
| || ||I/L|| || ᐊᓂᔑᓂᓂᒧᐎᓐ (Anishininiimowin) ||Ojibwa, Severn|| || || || ||
|-
![[ISO 639:ojv|ojv]] {{anchor|ojv}}
| || ||I/L|| || ||Ontong Java|| || || || ||Ontong Java
|-
![[ISO 639:ojw|ojw]] {{anchor|ojw}}
| || ||I/L|| || Anihšināpēmowin (Nakawēmowin) ||Ojibwa, Western|| || || || ||
|-
![[ISO 639:oka|oka]] {{anchor|oka}}
| || ||I/L|| || ||Okanagan|| || || || ||
|-
![[ISO 639:okb|okb]] {{anchor|okb}}
| || ||I/L|| || ||Okobo|| || || || ||
|-
![[ISO 639:okd|okd]] {{anchor|okd}}
| || ||I/L|| || ||Okodia|| || || || ||
|-
![[ISO 639:oke|oke]] {{anchor|oke}}
| || ||I/L|| || ||Okpe (Southwestern Edo)|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:okg|okg]] {{anchor|okg}}
| || ||I/E|| || ||Koko Babangk|| || || || ||
|-
![[ISO 639:okh|okh]] {{anchor|okh}}
| || ||I/L|| || ||Koresh-e Rostam|| || || || ||
|-
![[ISO 639:oki|oki]] {{anchor|oki}}
| || ||I/L|| || ||Okiek|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:okj|okj]] {{anchor|okj}}
| || ||I/E|| || ||Oko-Juwoi|| || || || ||
|-
![[ISO 639:okk|okk]] {{anchor|okk}}
| || ||I/L|| || ||One, Kwamtim|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:okl|okl]] {{anchor|okl}}
| || ||I/E|| || ||Old Kentish Sign Language|| || ||古肯特手语|| ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:okm|okm]] {{anchor|okm}}
| || ||I/H|| || ||Korean, Middle (10th–16th centuries)|| || ||中古朝鲜语|| ||Mittelkoreanisch
|-
![[ISO 639:okn|okn]] {{anchor|okn}}
| || ||I/L|| || ||Oki-No-Erabu|| || ||冲永良部岛琉球语|| ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:oko|oko]] {{anchor|oko}}
| || ||I/H|| || ||Korean, Old (3rd–9th centuries)|| || ||古朝鲜语|| ||Altkoreanisch
|-
![[ISO 639:okr|okr]] {{anchor|okr}}
| || ||I/L|| || ||Kirike|| || || || ||
|-
![[ISO 639:oks|oks]] {{anchor|oks}}
| || ||I/L|| || ||Oko-Eni-Osayen|| || || || ||
|-
![[ISO 639:oku|oku]] {{anchor|oku}}
| || ||I/L|| || ||Oku|| || || || ||
|-
![[ISO 639:okv|okv]] {{anchor|okv}}
| || ||I/L|| || ||Orokaiva|| || || || ||
|-
![[ISO 639:okx|okx]] {{anchor|okx}}
| || ||I/L|| || ||Okpe (Northwestern Edo)|| || || || ||
|-
![[ISO 639:ola|ola]] {{anchor|ola}}
| || ||I/L|| || ||Walungge|| || || || ||
|-
![[ISO 639:old|old]] {{anchor|old}}
| || ||I/L|| || ||Mochi|| || || || ||
|-
![[ISO 639:ole|ole]] {{anchor|ole}}
| || ||I/L|| || ||Olekha|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:olk|olk]] {{anchor|olk}}
| || ||I/E|| || ||Olkol|| || || || ||
|-
![[ISO 639:olm|olm]] {{anchor|olm}}
| || ||I/L|| || ||Oloma|| || || || ||
|-
![[ISO 639:olo|olo]] {{anchor|olo}}
| || ||I/L|| || ||Livvi|| || || || ||
|-
![[ISO 639:olr|olr]] {{anchor|olr}}
| || ||I/L|| || ||Olrat|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:olt|olt]] {{anchor|olt}}
| || ||I/H||Indo-European|| ||Old Lithuanian|| || || || ||
|-
![[ISO 639:olu|olu]] {{anchor|olu}}
| || ||I/L||Niger–Congo|| ||Kuvale|| || || || ||
|-
![[ISO 639:oma|oma]] {{anchor|oma}}
| || ||I/L|| || ||Omaha-Ponca||omaha-ponca||omaha-ponca|| || ||
|-
![[ISO 639:omb|omb]] {{anchor|omb}}
| || ||I/L|| || ||Ambae, East|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:omc|omc]] {{anchor|omc}}
| || ||I/E|| || ||Mochica|| || || || ||
|-{{ISO 639-3 style|I|E}}
!([[ISO 639:ome|ome]]) {{anchor|ome}}
| || ||I/E|| || ||Omejes|| || || || ||
|-
![[ISO 639:omg|omg]] {{anchor|omg}}
| || ||I/L|| || ||Omagua|| ||omagua|| || ||
|-
![[ISO 639:omi|omi]] {{anchor|omi}}
| || ||I/L|| || ||Omi|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:omk|omk]] {{anchor|omk}}
| || ||I/E|| || ||Omok|| || || || ||
|-
![[ISO 639:oml|oml]] {{anchor|oml}}
| || ||I/L|| || ||Ombo|| || || || ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:omn|omn]] {{anchor|omn}}
| || ||I/A|| || ||Minoan|| || || || ||
|-
![[ISO 639:omo|omo]] {{anchor|omo}}
| || ||I/L|| || ||Utarmbung|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:omp|omp]] {{anchor|omp}}
| || ||I/H|| || ||Manipuri, Old|| || ||古曼尼普尔语|| ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:omr|omr]] {{anchor|omr}}
| || ||I/H|| || ||Marathi, Old|| || ||古马拉地语|| ||
|-
![[ISO 639:omt|omt]] {{anchor|omt}}
| || ||I/L|| || ||Omotik|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:omu|omu]] {{anchor|omu}}
| || ||I/E|| || ||Omurano|| ||omurano|| || ||
|-
![[ISO 639:omw|omw]] {{anchor|omw}}
| || ||I/L|| || ||Tairora, South|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:omx|omx]] {{anchor|omx}}
| || ||I/H|| || ||Mon, Old|| || ||古孟语|| ||
|-
![[ISO 639:ona|ona]] {{anchor|ona}}
| || ||I/L|| || ||Ona|| || || || ||
|-
![[ISO 639:onb|onb]] {{anchor|onb}}
| || ||I/L|| || ||Lingao|| || ||临高语|| ||
|-
![[ISO 639:one|one]] {{anchor|one}}
| || ||I/L|| ||Onʌyota’a:ka||Oneida||oneida||oneida||奥内达语|| ||
|-
![[ISO 639:ong|ong]] {{anchor|ong}}
| || ||I/L|| || ||Olo|| || || || ||
|-
![[ISO 639:oni|oni]] {{anchor|oni}}
| || ||I/L|| || ||Onin|| || || || ||
|-
![[ISO 639:onj|onj]] {{anchor|onj}}
| || ||I/L|| || ||Onjob|| || || || ||
|-
![[ISO 639:onk|onk]] {{anchor|onk}}
| || ||I/L|| || ||One, Kabore|| || || || ||
|-
![[ISO 639:onn|onn]] {{anchor|onn}}
| || ||I/L|| || ||Onobasulu|| || || || ||
|-
![[ISO 639:ono|ono]] {{anchor|ono}}
| || ||I/L|| ||Onǫta’kéka’||Onondaga||onondaga||onondaga|| || ||
|-
![[ISO 639:onp|onp]] {{anchor|onp}}
| || ||I/L|| || ||Sartang|| || || || ||
|-
![[ISO 639:onr|onr]] {{anchor|onr}}
| || ||I/L|| || ||One, Northern|| || || || ||
|-
![[ISO 639:ons|ons]] {{anchor|ons}}
| || ||I/L|| || ||Ono|| || || || ||
|-
![[ISO 639:ont|ont]] {{anchor|ont}}
| || ||I/L|| || ||Ontenu|| || || || ||
|-
![[ISO 639:onu|onu]] {{anchor|onu}}
| || ||I/L|| || ||Unua|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:onw|onw]] {{anchor|onw}}
| || ||I/H|| || ||Nubian, Old|| || ||古努比亚语|| ||
|-
![[ISO 639:onx|onx]] {{anchor|onx}}
| || ||I/L|| || ||Onin Based Pidgin|| || || || ||
|-
![[ISO 639:ood|ood]] {{anchor|ood}}
| || ||I/L|| ||O'odham||Tohono O'odham||papago||pápago|| ||тогоно о'одам||Tohono O'odham
|-
![[ISO 639:oog|oog]] {{anchor|oog}}
| || ||I/L|| || ||Ong|| || || || ||
|-
![[ISO 639:oon|oon]] {{anchor|oon}}
| || ||I/L|| || ||Önge|| || || || ||
|-
![[ISO 639:oor|oor]] {{anchor|oor}}
| || ||I/L|| || ||Oorlams|| || || || ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:oos|oos]] {{anchor|oos}}
| || ||I/A|| || ||Ossetic, Old|| || ||古奥塞梯语|| ||
|-
![[ISO 639:opa|opa]] {{anchor|opa}}
| || ||I/L|| || ||Okpamheri|| || || || ||
|-
!([[ISO 639:ope|ope]]) {{anchor|ope}}
| || || || || ||Old Persian|| || || || ||
|-
![[ISO 639:opk|opk]] {{anchor|opk}}
| || ||I/L|| || ||Kopkaka|| || || || ||
|-
![[ISO 639:opm|opm]] {{anchor|opm}}
| || ||I/L|| || ||Oksapmin|| || || || ||
|-
![[ISO 639:opo|opo]] {{anchor|opo}}
| || ||I/L|| || ||Opao|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:opt|opt]] {{anchor|opt}}
| || ||I/E|| || ||Opata|| ||ópata|| || ||
|-
![[ISO 639:opy|opy]] {{anchor|opy}}
| || ||I/L|| || ||Ofayé|| || || || ||
|-
![[ISO 639:ora|ora]] {{anchor|ora}}
| || ||I/L|| || ||Oroha|| || || || ||
|-
![[ISO 639:orc|orc]] {{anchor|orc}}
| || ||I/L|| || ||Orma|| || || || ||
|-
![[ISO 639:ore|ore]] {{anchor|ore}}
| || ||I/L|| || ||Orejón|| ||orejón|| || ||
|-
![[ISO 639:org|org]] {{anchor|org}}
| || ||I/L|| || ||Oring|| || || || ||
|-
![[ISO 639:orh|orh]] {{anchor|orh}}
| || ||I/L|| || ||Oroqen|| || ||鄂伦春语|| ||
|-{{ISO 639-3 style|M|L}}
![[ISO 639:ori|ori]] {{anchor|ori}}
|or||ori||M/L||Indo-European||ଓଡ଼ିଆ||Oriya||oriya||oriya||奥利亚语; 奥里亚语||ория||Oriya
|-
!([[ISO 639:ork|ork]]) {{anchor|ork}}
| || || || || ||Orokaiva|| || || || ||
|-{{ISO 639-3 style|M|L}}
![[ISO 639:orm|orm]] {{anchor|orm}}
|om||orm||M/L||Afro-Asiatic||Oromoo||Oromo||galla||oromo||奥罗莫语||оромо||Oromo
|-
![[ISO 639:orn|orn]] {{anchor|orn}}
| || ||I/L|| || ||Orang Kanaq|| || || || ||
|-
![[ISO 639:oro|oro]] {{anchor|oro}}
| || ||I/L|| || ||Orokolo|| || || || ||
|-
![[ISO 639:orr|orr]] {{anchor|orr}}
| || ||I/L|| || ||Oruma|| || || || ||
|-
![[ISO 639:ors|ors]] {{anchor|ors}}
| || ||I/L|| || ||Orang Seletar|| || || || ||
|-
![[ISO 639:ort|ort]] {{anchor|ort}}
| || ||I/L|| || ||Oriya, Adivasi|| || || || ||
|-
![[ISO 639:oru|oru]] {{anchor|oru}}
| || ||I/L|| || ||Ormuri|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:orv|orv]] {{anchor|orv}}
| || ||I/H|| || ||Russian, Old|| || ||古俄语|| ||
|-
![[ISO 639:orw|orw]] {{anchor|orw}}
| || ||I/L|| || ||Oro Win|| ||oro win|| || ||
|-
![[ISO 639:orx|orx]] {{anchor|orx}}
| || ||I/L|| || ||Oro|| || || || ||
|-
![[ISO 639:ory|ory]] {{anchor|ory}}
| || ||I/L|| || ||Oriya (individual language)|| || || || ||
|-
![[ISO 639:orz|orz]] {{anchor|orz}}
| || ||I/L|| || ||Ormu|| || || || ||
|-
![[ISO 639:osa|osa]] {{anchor|osa}}
| ||osa||I/L|| || ||Osage||osage||osage||奥萨格语||оседжи||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:osc|osc]] {{anchor|osc}}
| || ||I/A|| || ||Oscan||osque||osco||奥斯坎语||оскский||Oskisch
|-
![[ISO 639:osi|osi]] {{anchor|osi}}
| || ||I/L|| || ||Osing|| || || || ||
|-
![[ISO 639:oso|oso]] {{anchor|oso}}
| || ||I/L|| || ||Ososo|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:osp|osp]] {{anchor|osp}}
| || ||I/H|| || ||Spanish, Old|| || ||古西班牙语|| ||
|-
![[ISO 639:oss|oss]] {{anchor|oss}}
|os||oss||I/L||Indo-European||иронау||Ossetian||ossète||oseto||奥塞梯语; 奥塞提语||осетинский||Ossetisch
|-
![[ISO 639:ost|ost]] {{anchor|ost}}
| || ||I/L|| || ||Osatu|| || || || ||
|-
![[ISO 639:osu|osu]] {{anchor|osu}}
| || ||I/L|| || ||One, Southern|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:osx|osx]] {{anchor|osx}}
| || ||I/H|| || ||Saxon, Old|| || ||古撒克逊语|| ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:ota|ota]] {{anchor|ota}}
| ||ota||I/H|| ||لسان عثمانى||Turkish, Ottoman (1500–1928)||Turc ottoman||Turco-otomano||奥斯曼土耳其语||старотурецкий||Osmanisch
|-{{ISO 639-3 style|I|H}}
![[ISO 639:otb|otb]] {{anchor|otb}}
| || ||I/H|| || ||Tibetan, Old|| || ||古藏语|| ||
|-
![[ISO 639:otd|otd]] {{anchor|otd}}
| || ||I/L|| || ||Dohoi|| || || || ||
|-
![[ISO 639:ote|ote]] {{anchor|ote}}
| || ||I/L|| || ||Otomi, Mezquital|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:oti|oti]] {{anchor|oti}}
| || ||I/E|| || ||Oti|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:otk|otk]] {{anchor|otk}}
| || ||I/H|| || ||Turkish, Old|| || ||古突厥语|| ||
|-
![[ISO 639:otl|otl]] {{anchor|otl}}
| || ||I/L|| || ||Otomi, Tilapa|| || || || ||
|-
![[ISO 639:otm|otm]] {{anchor|otm}}
| || ||I/L|| || ||Otomi, Eastern Highland|| || || || ||
|-
![[ISO 639:otn|otn]] {{anchor|otn}}
| || ||I/L|| || ||Otomi, Tenango|| || || || ||
|-
![[ISO 639:otq|otq]] {{anchor|otq}}
| || ||I/L|| || ||Otomi, Querétaro|| || || || ||
|-
![[ISO 639:otr|otr]] {{anchor|otr}}
| || ||I/L|| || ||Otoro|| || || || ||
|-
![[ISO 639:ots|ots]] {{anchor|ots}}
| || ||I/L|| || ||Otomi, Estado de México|| || || || ||
|-
![[ISO 639:ott|ott]] {{anchor|ott}}
| || ||I/L|| || ||Otomi, Temoaya|| || || || ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:otu|otu]] {{anchor|otu}}
| || ||I/E|| || ||Otuke|| || || || ||
|-
![[ISO 639:otw|otw]] {{anchor|otw}}
| || ||I/L|| || Nishnaabemwin (Daawaamwin) ||Ottawa||ottawa|| || || ||
|-
![[ISO 639:otx|otx]] {{anchor|otx}}
| || ||I/L|| || ||Otomi, Texcatepec|| || || || ||
|-{{ISO 639-3 style|I|A}}
![[ISO 639:oty|oty]] {{anchor|oty}}
| || ||I/A|| || ||Tamil, Old|| || ||古泰米尔语|| ||
|-
![[ISO 639:otz|otz]] {{anchor|otz}}
| || ||I/L|| || ||Otomi, Ixtenco|| || || || ||
|-
![[ISO 639:oua|oua]] {{anchor|oua}}
| || ||I/L|| || ||Tagargrent|| || || || ||
|-
![[ISO 639:oub|oub]] {{anchor|oub}}
| || ||I/L|| || ||Glio-Oubi|| || || || ||
|-
![[ISO 639:oue|oue]] {{anchor|oue}}
| || ||I/L|| || ||Oune|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:oui|oui]] {{anchor|oui}}
| || ||I/H|| || ||Uighur, Old|| || ||回鹘语|| ||
|-{{ISO 639-3 style|I|E}}
![[ISO 639:oum|oum]] {{anchor|oum}}
| || ||I/E|| || ||Ouma|| || || || ||
|-
!([[ISO 639:oun|oun]]) {{anchor|oun}}
| || ||I/L|| || ||!O!ung|| || || || ||
|-
![[ISO 639:ovd|ovd]] {{anchor|ovd}}
| || ||I/L||Indo-European|| ||Elfdalian, Övdalian|| || || || ||
|-
![[ISO 639:owi|owi]] {{anchor|owi}}
| || ||I/L|| || ||Owiniga|| || || || ||
|-{{ISO 639-3 style|I|H}}
![[ISO 639:owl|owl]] {{anchor|owl}}
| || ||I/H|| || ||Welsh, Old|| || ||古威尔士语|| ||
|-
![[ISO 639:oyb|oyb]] {{anchor|oyb}}
| || ||I/L|| || ||Oy|| || || || ||
|-
![[ISO 639:oyd|oyd]] {{anchor|oyd}}
| || ||I/L|| || ||Oyda|| || || || ||
|-
![[ISO 639:oym|oym]] {{anchor|oym}}
| || ||I/L|| || ||Wayampi|| ||wayampi|| || ||
|-
![[ISO 639:oyy|oyy]] {{anchor|oyy}}
| || ||I/L|| || ||Oya'oya|| || || || ||
|-
![[ISO 639:ozm|ozm]] {{anchor|ozm}}
| || ||I/L|| || ||Koonzime|| || || || ||
|}

{{ISO 639-3 footer}}

{{DEFAULTSORT:Iso 639:O}}
[[Category:ISO 639]]