List of cities with the letter O 7 letters in the city name. Cities starting with the first letter O 7 letters in the name.
| Name of the city in O 7 letters | Country |
|---|---|
| Oakland | City in United States of America (USA) 7 letters on O |
| Orlando | City in United States of America (USA) 7 letters on O |
| Ontario | City in United States of America (USA) 7 letters on O |
| Oshkosh | City in United States of America (USA) 7 letters on O |
| Oak Lawn | City in United States of America (USA) 7 letters on O |
| Oak Park | City in United States of America (USA) 7 letters on O |
| Olympia | City in United States of America (USA) 7 letters on O |
| Oak Park | City in United States of America (USA) 7 letters on O |
| Oakdale | City in United States of America (USA) 7 letters on O |
| Opelika | City in United States of America (USA) 7 letters on O |
| Oil City | City in United States of America (USA) 7 letters on O |
| Onitsha | City in Nigeria 7 letters on O |
| Oshogbo | City in Nigeria 7 letters on O |
| October | City in Russia 7 letters on O |
| Obninsk | City in Russia 7 letters on O |
| October | City in Russia 7 letters on O |
| Opochka | City in Russia 7 letters on O |
| Olonets | City in Russia 7 letters on O |
| Okhansk | City in Russia 7 letters on O |
| Okayama | City in Japan 7 letters on O |
| Okazaki | City in Japan 7 letters on O |
| Odawara | City in Japan 7 letters on O |
| Obihiro | City in Japan 7 letters on O |
| Okinawa | City in Japan 7 letters on O |
| Otawara | City in Japan 7 letters on O |
| okegawa | City in Japan 7 letters on O |
| omitama | City in Japan 7 letters on O |
| Ofunato | City in Japan 7 letters on O |
| Ottoman | City in Egypt 7 letters on O |
| Ortaköy | City in Turkey 7 letters on O |
| Oguzeli | City in Turkey 7 letters on O |
| Orleans | City in France 7 letters on O |
| Ouargla | City in Algeria 7 letters on O |
| Orekhov | City in Ukraine 7 letters on O |
| Ochakov | City in Ukraine 7 letters on O |
| Olsztyn | City in Poland 7 letters on O |
| Odienne | City in Ivory Coast 7 letters on O |
| Orodara | City in Burkina Faso 7 letters on O |
| Orastie | City in Romania 7 letters on O |
| Oraviţa | City in Romania 7 letters on O |
| Otopeni | City in Romania 7 letters on O |
| Ostrava | City in Czech Republic 7 letters on O |
| Olomouc | City in Czech Republic 7 letters on O |
| Ordubad | City in Azerbaijan 7 letters on O |
| Or Akiva | City in Israel 7 letters on O |
| Opticon | City in Switzerland 7 letters on O |
| Oberwil | City in Switzerland 7 letters on O |
| Orlovka | City in Kyrgyzstan 7 letters on O |
| Odense | City in Denmark 7 letters on O |
| Orivesi | City in Finland 7 letters on O |
| Østfold | City in Norway 7 letters on O |
| Oppland | City in Norway 7 letters on O |
| Oualata | City in Mauritania 7 letters on O |
| Obeliai | City in Lithuania 7 letters on O |
| Oistins | City in Barbados 7 letters on O |