City or town with O
- Orlando
- Oslo
- Ottawa
- Oakland
- Oxford
- Omaha
- Osaka
- Olympia
- Oldenburg
- Orleans
- Oklahoma city
- Oakville
- Oshawa
- Oldham
- Ocean City
- Reklama
- Okinawa
- Oswego
- Odessa
- Oviedo
- Oaxaca
- Ogden
- Oceanside
- Orville
- Oberhausen
- OMAN
- Orillia
- Odisha
- Oregon City
- ostrava
- Oban
- Ocala
- Oswestry
- Ozark
- Oroville
- Oberlin
- Oshkosh
- Omsk
- Oneonta
- Oran
- Offenbach
- Orange City
- Ouagadougou
- Orangeburg
- Oakdale
- Offaly
- Orono
- Ormskirk
- Oamaru
- Olney
- Olathe
- Opal
- OREGON
- Ossining
- Opelika
- Oneida
- Oak Park
- Oconomowoc
- oakwood
- Overton
- Orlando Florida
- Reklama
- Owatonna
- Orion
- Owen sound
- Owensboro
- Overland Park
- olbia
- Oahu
- Outer Banks
- Owen
- organ
- ONTARIO
- Oak Creek
- Oceana
- Oswald
- Omen
- Orania
- Osborne
- ottwa
- Okehampton
- Ocean
- oyster bay
- Olovo
- Old Bridge
- ommen
- Olean
- Olivia
- Otsego
- Odesa
- Otorohanga
- Oberon
- Orinda
- Ostia
- Olive
- Otley
- Opotiki
- Ohakune
- open
- ottoman
- Outback
- Orizaba
Slova v seznamu City or town with O pochází od hráčů slovní hry Jméno, město, zvíře, věc.