City with O
- Orlando
- Oslo
- Ottawa
- Oakland
- Osaka
- Omaha
- Oxford
- Orleans
- Olympia
- Oldenburg
- OOty
- Ocean City
- Odessa
- Oberhausen
- Oshawa
- Ogden
- Okinawa
- Oaxaca
- Oregon City
- Oran
- Omsk
- Oviedo
- Oswego
- Oceanside
- Oakville
- Ouagadougou
- Offenbach
- Orange City
- Oklahoma City
- Ohio City
- Oxnard
- Oshkosh
- Ocala
- Orillia
- Odisha
- Oberlin
- Oakdale
- Oneonta
- Ozark
- Oahu
- otwock
- Orem
- ONTARIO
- Oneida
- Oliver
- Oporto
- Okayama
- Olivia
- Owen sound
- Oban
- Oakley
- Oconomowoc
- Orlando Florida
- Oroville
- Orly
- oak park
- Ostia
- Okanagan
- Overton
- Orono
- Omar
- Old Town
- Owensboro
- Olney
- OHIO
- Oswald
- Otago
- Oscar
- Onalaska
- Osceola
- Oceana
- Odesa
- Omdurman
- ohayo
- OKLAHOMA
- ostrawa
- Orange Beach
- Oralando
- Oranjestad
- Owatonna
- Obama
- Oleśnica
- Orania
- oak bay
- Overland Park
- Orland Park
- Ostrów Wielkopolski
- Othello
- Opelika
- outer banks
- Ormond Beach
- oasis
- Omagh
- Oval
- Okla
- Ozarks
- orla
- Orłowo
- Onslow
- oak hills
Orden på listan City with O kommer från spelare av ordleken Stad, Land, Flod.