List of cities with the letter O 20 letters in the city name. Cities starting with the first letter O 20 letters in the name.
| Name of the city in O 20 letters | Country |
|---|---|
| Orion Charter Township | City in United States of America (USA) 20 letters on O |
| Of Sanxenxo di Monsaraz | City in Portugal 20 letters on O |