Countries That Start with O | List & Examples

English only has one country that starts with O: Oman. This article contains a list of country names that start or end with “O.”

Example: Countries that start with O in a sentence
Oman is known for its stunning deserts, mountains, and coastline.

Countries that start with O

English only has one country that starts with “O”: Oman.

Countries that end with O: List

English does have many countries that end with “O”:

  • Burkina Faso
  • (Democratic Republic of the) Congo
  • (Republic of) Kosovo
  • Lesotho
  • Mexico
  • Monaco
  • Montenegro
  • (Kingdom of) Morocco
  • San Marino
  • Togo (Togolese Republic)
  • (Republic of) Trinidad and Tobago
Note
Some country names that end with “O,” such as “Montenegro” and “Puerto Rico,” are sometimes misspelled. Use QuillBot’s free Grammar Checker Android App or Grammar Checker iOS App to check your spelling.

Countries with other letters

If you’re looking for countries that start with another letter, you can visit one of our other articles on country names.

Countries with A Countries with F Countries with K Countries with Q Countries with V
Countries with B Countries with G Countries with L Countries with R Countries with W
Countries with C Countries with H Countries with M Countries with S Countries with X
Countries with D Countries with I Countries with N Countries with T Countries with Y
Countries with E Countries with J Countries with P Countries with U Countries with Z

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Merkus, J. (2025, February 19). Countries That Start with O | List & Examples. Quillbot. Retrieved August 11, 2025, from http://qbot.seotoolbuy.com/blog/word-finder/countries-that-start-with-o/

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Julia Merkus, MA

Julia has a bachelor in Dutch language and culture and two masters in Linguistics and Language and speech pathology. After a few years as an editor, researcher, and teacher, she now writes articles about her specialist topics: grammar, linguistics, methodology, and statistics.