26 Languages That Start With The Letter O

Have you ever wondered about the vast array of languages that start with the letter O? Wonder no more, you have come to the right place.

In this article, I will embark on a linguistic journey, delving into the rich tapestry of languages that begin with the letter O. From the ancient to the modern, from the exotic to the widely spoken, these captivating languages hold a treasure trove of culture and history

So, without further ado, let’s dive into the fascinating realm of languages that start with O and witness the beauty they bring to our world.


Languages That Start With The Letter O

The followings are some of the most known and lesser-known languages that begin with the letter O (In alphabetical order):

1. Occidental: Occidental, also known as Interlingue, is an international auxiliary language created to facilitate communication among people from different linguistic backgrounds. As a constructed language, Occidental aims to be easy to learn and use, fostering global understanding and cooperation.

2. Occitan: Occitan, also called Provençal, is a Romance language spoken in Southern France, parts of Italy, and Spain. With its rich literary history and distinct regional dialects, Occitan reflects the vibrant cultural diversity of the Occitania region.

3. Odul: Odul is an endangered language spoken in the Solomon Islands. With a small number of speakers, Odul faces the challenge of preserving its unique grammar and vocabulary amidst the dominance of larger languages in the region.

4. Ogham: Ogham is an ancient Celtic script used to write early Irish, Scottish Gaelic, and other languages. The Ogham script, consisting of notches and strokes on stones and wood, is a fascinating historical artifact that holds valuable insights into the early Celtic languages and culture.

5. Ojibwa (Otchipwe): Ojibwa, also known as Otchipwe or Anishinaabe, is an Algonquian language spoken primarily in Canada and parts of the United States. With its complex verb system and extensive use of suffixes, Ojibwa has a strong oral tradition and cultural significance for the Ojibwa people.

6. Ojibwe: Ojibwe is another name for the Ojibwa language. As one of the largest Native American language groups in North America, Ojibwe carries a deep connection to the traditions, myths, and history of its speakers.

7. Okanagan: Okanagan is a Salishan language spoken in British Columbia, Canada, by the Okanagan people. As a vital part of the Okanagan culture, the language plays a crucial role in preserving and passing down the rich heritage of this indigenous community.

8. Okuni: Okuni is an endangered language spoken in Chad, Africa. With a limited number of speakers, Okuni is at risk of fading away without concerted efforts to revitalize and promote its use.

9. Old Church Slavonic: Old Church Slavonic is the oldest attested Slavic language, used in religious texts and literature in the medieval Slavic world. As the liturgical language of the Eastern Orthodox Church, Old Church Slavonic has had a profound impact on the development of Slavic languages.

10. Old English: Old English, also known as Anglo-Saxon, was the language spoken in early medieval England before the Norman Conquest. This ancient language has greatly influenced the development of modern English, shaping its vocabulary and grammatical structure.

11. Old Irish: Old Irish is the earliest form of the Irish Gaelic language, used in historical texts and manuscripts. As a window into early Irish culture and literature, Old Irish is of significant importance to scholars and enthusiasts.

12. Old Prussian: Old Prussian was a Baltic language spoken in the historical region of Prussia, now part of modern-day Lithuania and Poland. Unfortunately, Old Prussian became extinct in the 18th century, and only limited fragments of the language survive.

13. Old Slavonic: Old Slavonic, also known as Old Church Slavonic, was the liturgical and literary language of the medieval Slavic world. It served as the basis for several modern Slavic languages and played a crucial role in the spread of Christianity in Eastern Europe.

14. Ololumo: Ololumo is a threatened language spoken in the Solomon Islands. With a small number of speakers, Ololumo faces the risk of disappearing if not preserved and revitalized.

15. Omaha: Omaha, also known as Umoⁿhoⁿ, is a Siouan language spoken by the Omaha people in Nebraska and neighboring states. As an integral part of their cultural heritage, Omaha reflects the beliefs, customs, and oral traditions of the Omaha tribe.

16. Oneida: Oneida is an Iroquoian language spoken by the Oneida people in Wisconsin and New York State. As a member of the Haudenosaunee Confederacy, the Oneida language is deeply intertwined with their history and identity.

17. Oraon: Oraon, also known as Kurukh, is an Austroasiatic language spoken in India, Bangladesh, and Nepal. With a significant number of speakers, Oraon plays a vital role in the cultural fabric of the region.

18. Oriya: Oriya, now officially known as Odia, is an Indo-Aryan language spoken in the Indian state of Odisha. As one of the classical languages of India, Oriya boasts a rich literary tradition and cultural heritage.

19. Oromo: Oromo is a Cushitic language spoken mainly in Ethiopia, Kenya, and parts of Somalia. With over 30 million speakers, Oromo is one of the largest African languages, and it holds immense cultural importance for the Oromo people.

20. Osage: Osage is a Siouan language spoken by the Osage Nation in Oklahoma, USA. As one of the indigenous languages of North America, Osage is an essential element of Osage identity and cultural preservation.

21. Oscan: Oscan was an ancient Italic language spoken in parts of Italy during the Roman Republic era. While it is now extinct, Oscan has left behind inscriptions and texts that provide valuable insights into the pre-Roman history of the Italian peninsula.

22. Ossetian: Ossetian, also known as Ossete, is an Iranian language spoken in the Caucasus region, primarily in South Ossetia and North Ossetia-Alania. As a unique language with both Iranian and Caucasian influences, Ossetian represents the cultural diversity of the region.

23. Ostyak: Ostyak, also known as Khanty, is a Uralic language spoken in Western Siberia, Russia. With its complex phonology and morphology, Ostyak is an integral part of the Khanty people’s cultural heritage.

24. Ostyak-Samoyed: Ostyak-Samoyed is a hypothetical language proposed by linguists to group Ostyak (Khanty) and Samoyed (Nenets) as related languages within the Uralic language family. While they are considered separate languages, the idea of a hypothetical Ostyak-Samoyed language family has influenced linguistic research.

25. Otchipwe: Otchipwe is another name for the Ojibwa language, spoken by the Ojibwa people in North America. As a major indigenous language with many dialects, Otchipwe showcases the rich linguistic diversity among the Ojibwa communities.

26. Otomi: Otomi is a Mesoamerican language spoken in Mexico. With its intricate tonal system and cultural significance for the Otomi people, the language represents an essential part of Mexico’s indigenous heritage.


I hope you found this article “Languages That Start With O” helpful and got insights into some of the rare and lesser-known languages around the world.

Also, keep in mind that, this isn’t an exhaustive list, if there are any Languages starting with the letter O.

Feel free to leave a comment below with the missing Languages and I’ll update the list as soon as possible.

And, if you’d like to explore more Languages starting with different letters of the alphabet, click the link below:

  • Languages That Start With P
  • Languages That Start With Q
  • Languages That Start With R
  • Languages That Start With S

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