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Which Country Starts With the Letter O? Get Facts & Quiz Answers

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Oman: The Only Country Starting With O – All You Need to Know for Exams

Curious about which country name starts with the letter O? Unlike many other alphabets, “O” has only one current country that starts with it. In this page, we explore Oman and learn about historical nations beginning with "O". Find interesting facts, history, and tips to help you remember this unique detail in world geography!


Complete List: Country Name Starts with the Letter O


Country Name Continent Official Language Interesting Fact
Oman Asia Arabic Oman has a coastline of over 3,000 km along the Arabian Sea and Gulf of Oman.

If you are searching for a European country name that starts with the letter O or trying to name three countries starting with "O", Oman is currently the only answer recognised worldwide. Historically, however, there were other regions and states with names beginning with "O".


About Oman: The Only Country Name Starts with the Letter O

Oman is unique, as it is the only country whose name starts with the letter O today. Located in the southeastern corner of the Arabian Peninsula, Oman is known for its rich seafaring history, distinctive landscapes, and peaceful society. The country plays a key role in regional trade due to its strategic position at the entrance of the Persian Gulf.


  • Capital: Muscat

  • Population: Over 4 million

  • Official Language: Arabic

  • Major Religion: Islam

  • Oman is ruled by a Sultan in a hereditary monarchy.

  • The country is known for deserts, mountains, and beautiful beaches.

  • Oman has a long tradition of maritime trade connecting Asia, Africa, and Europe.


Oman’s peaceful reputation often makes it stand apart from its neighbours. For those doing countries beginning with O quiz or learning about countries whose name starts with the letter O, remember Oman is the standout!


Explore related General Knowledge topics

Historical and Former Countries Beginning with the Letter O

While Oman is the only modern country that starts with "O," in the past, there were a few other entities with names beginning with this letter. Here are two notable examples often mentioned in quizzes about country name begins with the letter O:


  • Oldenburg: This was a Grand Duchy in northern Europe (now part of Germany). It held duchy status in the 18th and 19th centuries.

  • Orange Free State: A 19th-century Boer republic in southern Africa, later annexed by the British and now part of South Africa.


These countries no longer exist as independent nations but are useful to know for history lessons and quiz questions about countries whose name starts with the letter O or any country name start with letter O.


Learn about more interesting regions in world geography

Fun Facts and Common Questions on Countries Starting with O

Many students wonder how many countries name start with letter O. The short answer is: only Oman exists currently! No country from Europe, Africa, or the Americas has a name starting with "O" today. Here are some commonly asked questions and fun facts to boost your knowledge:


  • Is there a European country name starts with the letter O? No, Oman is the only country, and it is in Asia.

  • Countries that start with P, Q, R, W, X, Y: Many countries do start with these letters. For example, Pakistan, Qatar, Russia, Wales (a region), Xiamen (not a country but a city in China), and Yemen.

  • Trivia Tip: If you see “name 3 countries that start with the letter O,” remember to include historical options like Oldenburg and Orange Free State!


Vedantu encourages students to expand their global knowledge and be prepared for general knowledge quizzes. If the question asks, “Any country name start with letter O?”, Oman is always the answer.


In summary, Oman is currently the only country name that starts with the letter O. While history remembers a few former regions such as Oldenburg and the Orange Free State, only Oman remains recognized by the United Nations today. Knowing such unique facts gives students an edge in general knowledge quizzes and global studies.

FAQs on Which Country Starts With the Letter O? Get Facts & Quiz Answers

1. Which country starts with the letter ‘O’?

Oman is the only recognised country in the world that starts with the letter ‘O’. This is an important general knowledge fact for school and competitive exams.

  • Country: Oman
  • Capital: Muscat
  • Continent: Asia (Middle East)
  • Official language: Arabic

2. How many countries in the world have names beginning with the letter O?

There is only one country whose name begins with the letter ‘O’, which is Oman. Remembering this helps avoid confusion in GK MCQs.

  • Country: Oman
  • Capital: Muscat

3. What is the capital of the only country starting with O?

Muscat is the capital of Oman, which is the only country in the world starting with the letter ‘O’.

  • Country: Oman
  • Capital city: Muscat

4. Is Oman the only country whose name starts with the letter O?

Yes, Oman is the world’s only country whose name begins with ‘O’, making it a unique answer in alphabet-based GK questions.

  • This fact is recognised by organisations like the UN, NCERT and Britannica.

5. What are some facts about the country Oman?

Oman has rich historical and geographical importance in West Asia.

  • Area: 309,500 sq km
  • Population: Approx. 4.6 million (2023)
  • Currency: Omani Rial
  • Interesting Fact: Among the oldest independent states in the Arab world

6. Are there any European or African countries starting with O?

No, Oman is the only country in the world starting with ‘O’, and it is located in Asia.

  • Europe: No countries start with O
  • Africa: No countries start with O
  • Asia: Oman only

7. How can I remember the country beginning with O for exams?

Remembering Oman as the only ‘O’ country can be easy by visualising its name and flag, practising quizzes, and associating it with its Middle Eastern location.

  • Use flashcards with alphabetical country lists
  • Mark Oman on a map for visual recall
  • Revise using exam-style MCQs

8. Which other countries have unique starting letters like O?

Other rare-initial countries along with ‘O’ are important for MCQs.

  • Q: Qatar
  • X: None
  • W: None
  • Z: Zambia, Zimbabwe

9. Why is the fact about countries starting with O important in exams?

Knowing unique country initials like Oman is frequently tested in CBSE, ICSE, UPSC, and banking exams for fast fact-checking and to assess geographical awareness.

  • Appears in 1-mark MCQs and quiz rounds
  • Helps avoid confusion with non-existent countries like ‘Omnia’

10. What is the official language and currency of Oman?

Arabic is the official language and Omani Rial (OMR) is the currency of Oman.

  • Language: Arabic
  • Currency: Omani Rial

11. What makes Oman unique among world countries?

Oman is unique as the only country with an ‘O’ initial, and it is one of the oldest independent Arab states with a rich maritime history and diverse geography.

  • Only country in official UN lists starting with O
  • Located on the southeastern coast of the Arabian Peninsula
  • Important centre for ancient and modern trade

12. What are the surrounding countries of Oman?

Oman shares its borders with the United Arab Emirates (UAE), Saudi Arabia, and Yemen.

  • It also has a long coastline along the Arabian Sea and the Gulf of Oman.