World Languages

ISO 639 is a set of standards by the International Organization for Standardization that is concerned with representation of names for language and language groups.

Name Native name ISO-639-1 Code ISO-639-2b Code ISO-639-3 Code Scope Type Family
Orok oaa Individual Language Living
Oroch oac Individual Language Living
Aramaic, Old oar Individual Language Ancient (extinct since ancient times)
Avar, Old oav Individual Language Historical (distinct from its modern form)
Obispeño obi Individual Language Extinct (in recent times)
Southern Bontok obk Individual Language Living
Oblo obl Individual Language Living
Moabite obm Individual Language Ancient (extinct since ancient times)
Manobo, Obo obo Individual Language Living
Burmese, Old obr Individual Language Historical (distinct from its modern form)
Breton, Old obt Individual Language Historical (distinct from its modern form)
Obulom obu Individual Language Living
Ocaina oca Individual Language Living
Occidental occ
Old Chinese och Individual Language Ancient (extinct since ancient times) Chinese
Occitan (post 1500) occitan oc oci oci Individual Language Living
Cornish, Old oco Individual Language Historical (distinct from its modern form)
Matlatzinca, Atzingo ocu Individual Language Living
Odut oda Individual Language Living
Od odk Individual Language Living
Dutch, Old odt Individual Language Historical (distinct from its modern form)
Odual odu Individual Language Living
Ofo ofo Individual Language Extinct (in recent times)
Frisian, Old ofs Individual Language Historical (distinct from its modern form) Friesisch
Efutop ofu Individual Language Living
Ogbia ogb Individual Language Living
Ogbah ogc Individual Language Living
Georgian, Old oge Individual Language Historical (distinct from its modern form)
Ogbogolo ogg Individual Language Living
Ogan ogn
Khana ogo Individual Language Living
Ogbronuagum ogu Individual Language Living
Hittite, Old oht Individual Language Ancient (extinct since ancient times)
Hungarian, Old ohu Individual Language Historical (distinct from its modern form)
Oirata oia Individual Language Living
One, Inebu oin Individual Language Living
Ojibwa, Northwestern Anishinaabemowin (Ojibwemowin) ojb Individual Language Living
Ojibwa, Central Anishinaabemowin (Ojibwemowin) ojc Individual Language Living
Ojibwa, Eastern Nishnaabemwin (Jibwemwin) ojg Individual Language Living
Ojibwa ᐊᓂᔑᓇᐯᒧᐎᓐ (Anishinaabemowin oj oji oji Macrolanguage Living
Japanese, Old ojp Individual Language Historical (distinct from its modern form)
Ojibwa, Severn ᐊᓂᔑᓂᓂᒧᐎᓐ (Anishininiimowin) ojs Individual Language Living
Ontong Java ojv Individual Language Living
Ojibwa, Western Anihšināpēmowin (Nakawēmowin ojw Individual Language Living
Okanagan oka Individual Language Living
Okobo okb Individual Language Living
Okodia okd Individual Language Living
Okpe (Southwestern Edo) oke Individual Language Living
Koko Babangk okg Individual Language Extinct (in recent times)
Koresh-e Rostam okh Individual Language Living
Okiek oki Individual Language Living
Oko-Juwoi okj Individual Language Extinct (in recent times)
One, Kwamtim okk Individual Language Living
Old Kentish Sign Language okl Individual Language Extinct (in recent times)
Korean, Middle (10th–16th centuries) okm Individual Language Historical (distinct from its modern form)
Oki-No-Erabu okn Individual Language Living
Korean, Old (3rd–9th centuries) oko Individual Language Historical (distinct from its modern form)
Kirike okr Individual Language Living
Oko-Eni-Osayen oks Individual Language Living
Oku oku Individual Language Living
Orokaiva okv Individual Language Living
Okpe (Northwestern Edo) okx Individual Language Living
Walungge ola Individual Language Living
Mochi old Individual Language Living
Olekha ole Individual Language Living
Olkol olk Individual Language Extinct (in recent times)
Oloma olm Individual Language Living
Livvi olo Individual Language Living
Olrat olr Individual Language Living
Omaha-Ponca oma Individual Language Living
Ambae, East omb Individual Language Living
Mochica omc Individual Language Extinct (in recent times)
Omejes ome Individual Language Extinct (in recent times)
Omagua omg Individual Language Living
Omi omi Individual Language Living
Omok omk Individual Language Extinct (in recent times)
Ombo oml Individual Language Living
Minoan omn Individual Language Ancient (extinct since ancient times)
Utarmbung omo Individual Language Living
Manipuri, Old omp Individual Language Historical (distinct from its modern form)
Marathi, Old omr Individual Language Historical (distinct from its modern form)
Omotik omt Individual Language Living
Omurano omu Individual Language Extinct (in recent times)
Tairora, South omw Individual Language Living
Mon, Old omx Individual Language Historical (distinct from its modern form)
Ona ona Individual Language Living
Lingao onb Individual Language Living
Oneida Onʌyota’a:ka one Individual Language Living
Olo ong Individual Language Living
Onin oni Individual Language Living
Onjob onj Individual Language Living
One, Kabore onk Individual Language Living
Onobasulu onn Individual Language Living
Onondaga Onǫta’kéka’ ono Individual Language Living
Sartang onp Individual Language Living
One, Northern onr Individual Language Living
Ono ons Individual Language Living
Ontenu ont Individual Language Living
Unua onu Individual Language Living
Nubian, Old onw Individual Language Historical (distinct from its modern form)
Onin Based Pidgin onx Individual Language Living
Tohono O'odham O'odham ood Individual Language Living
Ong oog Individual Language Living
Önge oon Individual Language Living
Oorlams oor Individual Language Living
Ossetic, Old oos Individual Language Ancient (extinct since ancient times)
Okpamheri opa Individual Language Living
Old Persian ope
Kopkaka opk Individual Language Living
Oksapmin opm Individual Language Living
Opao opo Individual Language Living
Opata opt Individual Language Extinct (in recent times)
Ofayé opy Individual Language Living
Oroha ora Individual Language Living
Orma orc Individual Language Living
Orejón ore Individual Language Living
Oring org Individual Language Living
Oroqen orh Individual Language Living
Oriya ଓଡ଼ିଆ or ori ori Macrolanguage Living
Orokaiva ork
Oromo Oromoo om orm orm Macrolanguage Living
Orang Kanaq orn Individual Language Living
Orokolo oro Individual Language Living
Oruma orr Individual Language Living
Orang Seletar ors Individual Language Living
Oriya, Adivasi ort Individual Language Living
Ormuri oru Individual Language Living
Russian, Old orv Individual Language Historical (distinct from its modern form)
Oro Win orw Individual Language Living
Oro orx Individual Language Living
Oriya (individual language) ory Individual Language Living
Ormu orz Individual Language Living
Osage osa osa Individual Language Living
Oscan osc Individual Language Ancient (extinct since ancient times)
Osing osi Individual Language Living
Ososo oso Individual Language Living
Spanish, Old osp Individual Language Historical (distinct from its modern form)
Ossetian иронау os oss oss Individual Language Living
Osatu ost Individual Language Living
One, Southern osu Individual Language Living
Saxon, Old osx Individual Language Historical (distinct from its modern form)
Turkish, Ottoman (1500–1928) لسان عثمانى ota ota Individual Language Historical (distinct from its modern form)
Tibetan, Old otb Individual Language Historical (distinct from its modern form)
Dohoi otd Individual Language Living
Otomi, Mezquital ote Individual Language Living
Oti oti Individual Language Extinct (in recent times)
Turkish, Old otk Individual Language Historical (distinct from its modern form)
Otomi, Tilapa otl Individual Language Living
Otomi, Eastern Highland otm Individual Language Living
Otomi, Tenango otn Individual Language Living
Otomi, Querétaro otq Individual Language Living
Otoro otr Individual Language Living
Otomi, Estado de México ots Individual Language Living
Otomi, Temoaya ott Individual Language Living
Otuke otu Individual Language Extinct (in recent times)
Ottawa Nishnaabemwin (Daawaamwin) otw Individual Language Living
Otomi, Texcatepec otx Individual Language Living
Tamil, Old oty Individual Language Ancient (extinct since ancient times)
Otomi, Ixtenco otz Individual Language Living
Tagargrent oua Individual Language Living
Glio-Oubi oub Individual Language Living
Oune oue Individual Language Living
Uighur, Old oui Individual Language Historical (distinct from its modern form)
Ouma oum Individual Language Extinct (in recent times)
!O!ung oun Individual Language Living
Owiniga owi Individual Language Living
Welsh, Old owl Individual Language Historical (distinct from its modern form)
Oy oyb Individual Language Living
Oyda oyd Individual Language Living
Wayampi oym Individual Language Living
Oya'oya oyy Individual Language Living
Koonzime ozm Individual Language Living