ISO 639:o

This is a list of ISO 639-3 language codes starting with O.

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Index | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | w | x | y | z

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Abbreviations are used in the table as follows:

• Scope ^[1] : I = individual language, M = macrolanguage , S = special code
• Type ^[2] : C = constructed , E = extinct (in recent times), H = historical (distinct from its modern form), L = living , S = special code

Deprecated codes are enclosed in (parentheses). ^[3]

The column Family contains the generic English name of the language's family or macrolanguage.

ISO 639 codes			Scope/Type	Family	Language names
639-3	639-1	639-2/B			Native	ISO name
oaa			I/L			Orok
oac			I/L			Oroch
oak			I/L	Indo-European	নোয়াখাইল্লা	Noakhali; Noakhailla
oar			I/H	Afro-Asiatic		Ancient Aramaic (up to 700 BCE); Old Aramaic (up to 700 BCE)
oav			I/H	Northeast Caucasian	اوار ماض	Old Avar
obi			I/E			Obispeño
obk			I/L			Southern Bontok
obl			I/L			Oblo
obm			I/H			Moabite
obo			I/L			Obo Manobo
obr			I/H	Sino-Tibetan		Old Burmese
obt			I/H	Indo-European	old brezhoneg	Old Breton
obu			I/L			Obulom
oca			I/L			Ocaina
( occ )			I/C			Occidental
och			I/H	Sino-Tibetan		Old Chinese
oci	oc	oci	I/L	Indo-European	occitan	Occitan (post 1500)
ocm			I/H	Austronesian		Old Cham
oco			I/H	Indo-European	old Kernewek	Old Cornish
ocu			I/L			Atzingo Matlatzinca
oda			I/L			Odut
odk			I/L			Od
odt			I/H	Indo-European	*thiudisc	Old Dutch
odu			I/L			Odual
ofo			I/E			Ofo
ofs			I/H	Indo-European	Frīsesk	Old Frisian
ofu			I/L			Efutop
ogb			I/L			Ogbia
ogc			I/L			Ogbah
oge			I/H	Kartvelian	ႤႬႠჂ ႵႠႰႧႭჃႪႨ	Old Georgian
ogg			I/L			Ogbogolo
( ogn )			I/L			Ogan
ogo			I/L			Khana
ogu			I/L			Ogbronuagum
oht			I/H	Indo-European	𒌷𒉌𒅆𒇷	Old Hittite
ohu			I/H	Uralic		Old Hungarian
oia			I/L			Oirata
oie			I/L	Nilo-Saharan		Okolie
oin			I/L			Inebu One
ojb			I/L		Anishinaabemowin (Ojibwemowin)	Northwestern Ojibwa
ojc			I/L		Anishinaabemowin (Ojibwemowin)	Central Ojibwa
ojg			I/L		Nishnaabemwin (Jibwemwin)	Eastern Ojibwa
oji	oj	oji	M/L	Cree	ᐊᓂᔑᓇᐯᒧᐎᓐ (Anishinaabemowin)	Ojibwa
ojp			I/H	Japonic	上代日本語; 大和言葉	Old Japanese
ojs			I/L		ᐊᓂᔑᓂᓂᒧᐎᓐ (Anishininiimowin)	Severn Ojibwa
ojv			I/L			Ontong Java
ojw			I/L		Anihšināpēmowin (Nakawēmowin)	Western Ojibwa
oka			I/L			Okanagan
okb			I/L			Okobo
okc			I/L	Niger–Congo		Kobo
okd			I/L			Okodia
oke			I/L			Okpe (Southwestern Edo)
okg			I/E			Koko Babangk
okh			I/L			Koresh-e Rostam
oki			I/L			Okiek
okj			I/E			Oko-Juwoi
okk			I/L			Kwamtim One
okl			I/E	village sign		Old Kentish Sign Language
okm			I/H			Middle Korean (10th-16th cent.)
okn			I/L			Oki-No-Erabu
oko			I/H	Koreanic	Silla(n); 고대 조선어; 고대 한국어	Old Korean (3rd-9th cent.)
okr			I/L			Kirike
oks			I/L			Oko-Eni-Osayen
oku			I/L			Oku
okv			I/L			Orokaiva
okx			I/L			Okpe (Northwestern Edo)
okz			I/H	Austroasiatic		Old Khmer
ola			I/L			Walungge
old			I/L			Mochi
ole			I/L	Sino-Tibetan? / isolate?		Olekha
olk			I/E			Olkol
olm			I/L			Oloma
olo			I/L			Livvi
olr			I/L			Olrat
olt			I/H	Indo-European	old lietuvių	Old Lithuanian
olu			I/L	Niger–Congo		Kuvale
oma			I/L			Omaha-Ponca
omb			I/L			East Ambae
omc			I/E			Mochica
( ome )			I/E			Omejes
omg			I/L			Omagua
omi			I/L			Omi
omk			I/E			Omok
oml			I/L			Ombo
omn			I/H			Minoan
omo			I/L			Utarmbung
omp			I/H	Sino-Tibetan	ꯃꯩꯇꯩꯂꯣꯟ	Old Manipuri
omr			I/H	Indo-European	𑘦𑘨𑘰𑘙𑘲	Old Marathi
omt			I/L			Omotik
omu			I/E			Omurano
omw			I/L			South Tairora
omx			I/H	Austroasiatic	ဘာသာမန်	Old Mon
omy			I/H	Austronesian		Old Malay
ona			I/L			Ona
onb			I/L			Lingao
one			I/L		Onʌyota’a:ka	Oneida
ong			I/L			Olo
oni			I/L			Onin
onj			I/L			Onjob
onk			I/L			Kabore One
onn			I/L			Onobasulu
ono			I/L		Onǫta’kéka’	Onondaga
onp			I/L	Tibeto-Burman?	But(pa)	Sartang
onr			I/L			Northern One
ons			I/L			Ono
ont			I/L			Ontenu
onu			I/L			Unua
onw			I/H	Eastern Sudanic		Old Nubian
onx			I/L			Onin Based Pidgin
ood			I/L		O'odham	Tohono O'odham
oog			I/L			Ong
oon			I/L			Önge
oor			I/L			Oorlams
oos			I/H	Indo-European		Old Ossetic
opa			I/L			Okpamheri
( ope )			I/H			Old Persian
opk			I/L			Kopkaka
opm			I/L			Oksapmin
opo			I/L			Opao
opt			I/E			Opata
opy			I/L			Ofayé
ora			I/L			Oroha
orc			I/L			Orma
ore			I/L			Orejón
org			I/L			Oring
orh			I/L			Oroqen
ori	or	ori	M/L	Indo-European	ଓଡ଼ିଆ	Oriya (macrolanguage)
( ork )			I/L			Orokaiva
orm	om	orm	M/L	Afro-Asiatic	Oromoo	Oromo
orn			I/L			Orang Kanaq
oro			I/L			Orokolo
orr			I/L			Oruma
ors			I/L			Orang Seletar
ort			I/L			Adivasi Oriya
oru			I/L			Ormuri
orv			I/H	Indo-European		Old Russian
orw			I/L			Oro Win
orx			I/L			Oro
ory			I/L			Odia; Oriya (individual language)
orz			I/L			Ormu
osa		osa	I/L		𐓏𐓘𐓻𐓘𐓻𐓟	Osage
osc			I/H			Oscan
osd			I/H		дигорон ӕвзаг	Digor Ossetic
osi			I/L			Osing
osn			I/H	Austronesian	ᮘᮞ ᮞᮥᮔ᮪ᮓ ᮘᮥᮠᮥᮔ᮪	Old Sundanese
oso			I/L			Ososo
osp			I/H	Indo-European	romançe	Old Spanish
oss	os	oss	I/L	Indo-European	ирон	Ossetian; Ossetic
ost			I/L			Osatu
osu			I/L			Southern One
osx			I/H	Indo-European	Sahsisk	Old Saxon
ota		ota	I/H		لسان عثمانى	Ottoman Turkish (1500-1928)
otb			I/H	Sino-Tibetan		Old Tibetan
otd			I/L			Ot Danum
ote			I/L			Mezquital Otomi
oti			I/E			Oti
otk			I/H	Turkic		Old Turkish
otl			I/L			Tilapa Otomi
otm			I/L			Eastern Highland Otomi
otn			I/L			Tenango Otomi
otq			I/L			Querétaro Otomi
otr			I/L			Otoro
ots			I/L			Estado de México Otomi
ott			I/L			Temoaya Otomi
otu			I/E			Otuke
otw			I/L		Nishnaabemwin (Daawaamwin)	Ottawa
otx			I/L			Texcatepec Otomi
oty			I/H	Dravidian		Old Tamil
otz			I/L			Ixtenco Otomi
oua			I/L			Tagargrent
oub			I/L			Glio-Oubi
oue			I/L			Oune
oui			I/H	Turkic		Old Uighur
oum			I/E			Ouma
( oun )			I/L			ǃOǃung
ovd			I/L	Indo-European		Elfdalian; Övdalian
owi			I/L			Owiniga
owl			I/H	Indo-European	Hen Gymraeg	Old Welsh
oyb			I/L			Oy
oyd			I/L			Oyda
oym			I/L			Wayampi
oyy			I/L			Oya'oya
ozm			I/L			Koonzime

References

1. "Scope of denotation for language identifiers". Archived from the original on December 31, 2024. Retrieved June 17, 2025.
2. "Types of individual languages". Archived from the original on January 4, 2025. Retrieved June 17, 2025.
3. "Deprecated Language Codes". Archived from the original on November 15, 2023. Retrieved June 17, 2025.

Sources

• "ISO 639-2 Registration Authority". Library of Congress.
• "ISO 639-3 Registration Authority". SIL International.
• Lewis, M. Paul; Simons, Gary F.; Fennig, Charles D., eds. (2016). "Ethnologue: Languages of the World" (19th ed.). Dallas, Texas: SIL International.

External links

• "Codes for the Representation of Names of Languages (ISO 639-1 and ISO 639-2 codes)". Library of Congress.
• "ISO 639-3 Downloads". SIL International.