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Bosnian
A South Slavic language standardized by Bosniaks — one of three official languages of Bosnia and Herzegovina, mutually intelligible with Croatian and Serbian.
Below are languages that contain the letter O anywhere in the name. Each of the 72 languages below opens to a full profile.
Table of contents
List of Languages That Contain O
2
Breton
A Celtic language of Brittany in northwestern France — closely related to Welsh and Cornish, with about 210,000 speakers and ongoing revitalization efforts.
3
Cebuano
An Austronesian language and the second-most-spoken language of the Philippines — dominant across the Visayas and northern Mindanao.
4
Chamorro
The Austronesian language of Guam and the Northern Mariana Islands — the indigenous tongue of Pacific island communities heavily influenced by three centuries of Spanish contact.
5
Cherokee
An Iroquoian language indigenous to the southeastern United States — written in an indigenous syllabary invented by Sequoyah in 1821.
6
Coptic
The final stage of the ancient Egyptian language — the language of early Christian Egypt and still the liturgical tongue of the Coptic Orthodox Church.
7
Cornish
A revived Celtic language of Cornwall in southwestern England — extinct as a community language by the late 18th century, now spoken by a few hundred dedicated revivalists.
8
Corsican
A Romance language of the island of Corsica — closely related to Tuscan Italian, with about 130,000 speakers and growing institutional support in France.
9
Croatian
A South Slavic language and the official tongue of Croatia — written in Latin script and mutually intelligible with Serbian, Bosnian, and Montenegrin.
10
Dothraki
A fictional language created by linguist David J. Peterson for HBO's *Game of Thrones* adaptation — the language of the nomadic Dothraki horse-lords.
11
Dzongkha
The national language of Bhutan — a Sino-Tibetan language of the southern Himalayas closely related to classical Tibetan.
12
Esperanto
The most successful constructed international auxiliary language — created by L. L. Zamenhof in 1887 to serve as a politically neutral second language for all.
13
Estonian
A Uralic language closely related to Finnish — Estonia's official tongue, with 14 grammatical cases and three contrastive degrees of vowel and consonant length.
14
Faroese
A North Germanic language of the Faroe Islands — closely related to Icelandic, spoken by about 72,000 people in the autonomous territory of Denmark.
15
Georgian
A Kartvelian (South Caucasian) language and the official language of Georgia — written in its own unique 33-letter alphabet, with about 3.7 million speakers.
16
Gothic
The earliest substantially attested East Germanic language — preserved almost entirely in Bishop Wulfila's 4th-century Bible translation.
17
Haitian Creole
A French-based creole and the most widely spoken creole language in the world — Haiti's co-official language alongside French, spoken by virtually all 12 million Haitians.
18
Hmong
A Hmong-Mien language spoken in southern China, Vietnam, Laos, and the diaspora — about 4 million speakers, with major communities in the United States after Indochina wars.
19
Hopi
A Uto-Aztecan language of northeastern Arizona — spoken by the Hopi Tribe on the Hopi Reservation surrounded by the Navajo Nation.
20
Ido
A reformed version of Esperanto created in 1907 to address perceived flaws — the most significant Esperanto offshoot, with a small but persistent community.
21
Igbo
A Niger-Congo language of southeastern Nigeria — spoken by about 30 million people and one of Nigeria's three official "majority" languages.
22
Indonesian
A standardized form of Malay and the national language of Indonesia — a deliberate lingua franca for the world's fourth-most-populous country, with about 200 million speakers.
23
Jamaican Patois
An English-based creole spoken by virtually all Jamaicans — about 3 million native speakers and a growing presence in global music and pop culture.
24
Klingon
A constructed language created by linguist Marc Okrand for the Star Trek franchise — the most fully developed and widely spoken of all fictional languages.
25
Korean
A language isolate spoken by about 80 million people across the Korean peninsula and its diaspora — written in Hangul, an alphabet designed for it in the 15th century.
26
Krio
An English-based creole that is the lingua franca of Sierra Leone — descended from the speech of freed Africans resettled in Freetown from the late 18th century.
27
Kurdish (Sorani)
The Central Kurdish variety — official in Iraqi Kurdistan and widely used in western Iran — written in a modified Arabic script.
28
Ladino
The Judaeo-Spanish language preserved by Sephardic Jews after the 1492 expulsion from Spain — a 15th-century Iberian Romance variety with Hebrew, Turkish, and Greek admixture.
29
Lakota
A Western Siouan language of the Great Plains — spoken by the Lakota people across the Dakotas, Nebraska, and southern Saskatchewan.
30
Lao
A Tai-Kadai language and the official tongue of Laos — closely related to Thai and written in a similar Brahmic script, with about 30 million speakers including northeast Thailand.
31
Lojban
A constructed language designed for unambiguous logical expression — every sentence parses to exactly one syntactic and semantic interpretation.
32
Luxembourgish
A West Germanic language of Luxembourg — a national language alongside French and German, with about 390,000 speakers.
33
Macedonian
A South Slavic language closely related to Bulgarian — official in North Macedonia, written in a distinctive Cyrillic alphabet.
34
Maori
An Eastern Polynesian language and the indigenous language of New Zealand — an official language of Aotearoa, undergoing active revitalization after late-20th-century decline.
35
Mohawk
An Iroquoian language of upstate New York and southern Canada — the easternmost language of the Iroquois Confederacy, now undergoing significant revival.
36
Mongolian
A Mongolic language and the official tongue of Mongolia — about 5.7 million speakers across Mongolia, Inner Mongolia (China), and Russia.
37
Navajo
An Athabaskan language and the most spoken Native American language in the United States — famed for its role in the WWII Code Talkers who transmitted unbreakable battlefield codes.
38
Norwegian
A North Germanic language with two written standards (Bokmål and Nynorsk) — official in Norway, mutually intelligible with Swedish and Danish.
39
Occitan
A Romance language of southern France, Monaco, parts of Italy and Spain — once the prestige tongue of medieval troubadour poetry, today minority and endangered.
40
Odia
An Indo-Aryan language and the official tongue of the Indian state of Odisha — one of India's six classical languages, with a literary tradition dating to the 13th century.
41
Ojibwe
A Central Algonquian language spoken across the Great Lakes region of the United States and Canada — one of the most widely spoken Indigenous languages in North America.
42
Old Church Slavonic
The first literary Slavic language — developed in the 9th century by Saints Cyril and Methodius for the Christianisation of the Slavs, still used liturgically by Orthodox churches.
43
Old English
The West Germanic language spoken in early medieval England — the language of *Beowulf*, unrecognisable to modern English speakers without study.
44
Old Norse
The North Germanic language of the Viking Age — ancestor of Icelandic, Faroese, Norwegian, Swedish, and Danish — and the language of the Eddas and sagas.
45
Oromo
A Cushitic language and the most widely spoken first language in Ethiopia — written in a Latin alphabet known as Qubee since the 1990s.
46
Ossetian
An Eastern Iranian language and the official language of North Ossetia (Russia) and South Ossetia — about 540,000 speakers, descended from the Alans and Scythians.
47
Pashto
An Eastern Iranian language and one of two official languages of Afghanistan — also spoken across the Pakistan-Afghanistan frontier by tens of millions of Pashtuns.
48
Polish
A West Slavic language spoken by about 45 million people — Poland's national language and a major European tongue with a famously consonant-rich phonology.
49
Portuguese
A Romance language born in the Iberian northwest and spread by maritime empire — today the official language of Portugal, Brazil, and several African and Asian states.
50
Romani
An Indo-Aryan language of the Roma people — spoken across Europe and the Americas by an estimated 4 million people, with many regional dialects.
51
Romanian
The only major Eastern Romance language — the official language of Romania and Moldova — descended from Vulgar Latin spoken in the Roman province of Dacia.
52
Romansh
A Romance language of the Swiss canton of Graubünden — one of Switzerland's four national languages, with about 60,000 speakers across five distinct dialects.
53
Sami (Northern)
A Uralic language and the most widely spoken Sami variety — indigenous to northern Norway, Sweden, and Finland with about 25,000 speakers.
54
Samoan
A Polynesian language and the official tongue of Samoa and American Samoa — closely related to other Polynesian languages and the foundation for understanding the Polynesian dispersal.
55
Sango
A Ngbandi-based creole that serves as the national language of the Central African Republic.
56
Scottish Gaelic
A Celtic language brought from Ireland to Scotland in the early medieval period — recognized but minority, with about 57,000 speakers concentrated in the Hebrides and Highlands.
57
Shona
A Bantu language and the most-spoken first language in Zimbabwe — also widely used in Mozambique, with a vibrant oral and musical tradition (especially mbira music).
58
Slovak
A West Slavic language closely related to Czech — the official language of Slovakia, often considered the most central Slavic tongue in mutual intelligibility.
59
Slovene
A South Slavic language and Slovenia's official tongue — notable for preserving the rare grammatical dual number, used for exactly two of something.
60
Sogdian
The Middle Iranian language of the Sogdian merchant city-states of Central Asia — the lingua franca of the Silk Road for over a thousand years.
61
Somali
A Cushitic language and the official tongue of Somalia — distinguished by its complex tone-accent system and a uniquely Latin-based orthography adopted in 1972.
62
Sotho
A Bantu language spoken by about 6 million people across Lesotho, South Africa, and Zimbabwe — also called Sesotho or Southern Sotho.
63
Tagalog (Filipino)
An Austronesian language and the basis for Filipino, the national language of the Philippines — spoken natively by about 28 million people and as a second language by most Filipinos.
64
Tok Pisin
An English-based creole and one of the three official languages of Papua New Guinea — the lingua franca for a country of over 800 languages.
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Toki Pona
A minimalist constructed language created by Sonja Lang in 2001 — with only about 120 root words, designed to encourage simple, mindful expression.
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Tongan
A Polynesian language and the official tongue of the Kingdom of Tonga — a sister language to Samoan within the Polynesian family.
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Volapük
The first widely successful constructed international auxiliary language — created by Johann Martin Schleyer in 1879 and peaking before Esperanto overtook it.
68
Wampanoag
An Eastern Algonquian language of the Wampanoag people of present-day Massachusetts — extinct as a first language in the 19th century, now being revived.
69
Wolof
A Niger-Congo language and the lingua franca of Senegal — spoken natively by about 5 million people and used as a second language by most Senegalese.
70
Xhosa
A Nguni Bantu language famous for its three click consonants — South Africa's second-most-spoken language and the mother tongue of Nelson Mandela.
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Yoruba
A Niger-Congo language spoken by about 47 million people in southwestern Nigeria and Benin — known for its rich oral tradition and tonal phonology.
72
Yue Chinese (Cantonese)
A southern Chinese branch centered on Guangzhou and Hong Kong — famous for preserving more tones and finals than Mandarin and for its prolific role in global Cantonese pop culture.
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