City with O
- Orlando
- Oslo
- Ottawa
- Oakland
- Osaka
- Omaha
- Oxford
- Orleans
- Olympia
- Oldenburg
- OOty
- Ocean City
- Odessa
- Oberhausen
- Oshawa
- Ogden
- Oaxaca
- Okinawa
- Oregon City
- Omsk
- Oran
- Oviedo
- Oswego
- Oceanside
- Oakville
- Ouagadougou
- Offenbach
- Orange City
- Oklahoma City
- Ohio City
- Oxnard
- Oshkosh
- Ocala
- Orillia
- Odisha
- Oakdale
- Oberlin
- Oneonta
- Ozark
- Oahu
- ONTARIO
- Orem
- otwock
- Oneida
- Olivia
- Oporto
- Okayama
- Oliver
- Oakley
- Oconomowoc
- Oban
- Owen sound
- Orlando Florida
- Oroville
- Orly
- Okanagan
- Overton
- Ostia
- oak park
- Olney
- OHIO
- Oswald
- Otago
- Oscar
- Owensboro
- Omar
- Old Town
- Orono
- Oceana
- Odesa
- Onalaska
- Osceola
- Orange Beach
- ostrawa
- ohayo
- OKLAHOMA
- Omdurman
- Obama
- Orland Park
- Ostrów Wielkopolski
- Overland Park
- Othello
- Orania
- Oleśnica
- Oralando
- Owatonna
- Oranjestad
- oak bay
- Okla
- Ormond Beach
- oasis
- outer banks
- Omagh
- Oval
- Opelika
- opal
- Ozarks
- Obrenovac
- octopus
- osa
The words in the list City with O come from players of the word game City, Country, River.