List of cities with the letter O 9 letters in the city name. Cities starting with the first letter O 9 letters in the name.
| Name of the city in O 9 letters | Country |
|---|---|
| Oceanside | City in United States of America (USA) 9 letters on O |
| Old Bridge | City in United States of America (USA) 9 letters on O |
| Owensboro | City in United States of America (USA) 9 letters on O |
| Oro Valley | City in United States of America (USA) 9 letters on O |
| Oak Harbor | City in United States of America (USA) 9 letters on O |
| Opelousas | City in United States of America (USA) 9 letters on O |
| Ogbomosho | City in Nigeria 9 letters on O |
| Odintsovo | City in Russia 9 letters on O |
| Omutninsk | City in Russia 9 letters on O |
| Ostashkov | City in Russia 9 letters on O |
| Olekminsk | City in Russia 9 letters on O |
| Old Crimea | City in Russia 9 letters on O |
| Orhangazi | City in Turkey 9 letters on O |
| Oldenburg | City in Germany 9 letters on O |
| Osnabrück | City in Germany 9 letters on O |
| Offenbach | City in Germany 9 letters on O |
| Oberville | City in France 9 letters on O |
| Old Crimea | City in Ukraine 9 letters on O |
| Old Sambor | City in Ukraine 9 letters on O |
| Of larache | City in Morocco 9 letters on O |
| Ocna Mures | City in Romania 9 letters on O |
| Of Isakcha | City in Romania 9 letters on O |
| Oum Hadjer | City in Chad 9 letters on O |
| Orestiada | City in Greece 9 letters on O |
| Ostersund | City in Sweden 9 letters on O |
| Olanchito | City in Honduras 9 letters on O |
| Oftringen | City in Switzerland 9 letters on O |
| Outokumpu | City in Finland 9 letters on O |
| Old Harbor | City in Jamaica 9 letters on O |
| Onvervaht | City in Suriname 9 letters on O |