City or town with O
- Orlando
- Oslo
- Ottawa
- Oakland
- Oxford
- Omaha
- Osaka
- Olympia
- Oldenburg
- Orleans
- Oklahoma city
- Oakville
- Oldham
- Oshawa
- Ocean City
- Okinawa
- Oswego
- Odessa
- Oviedo
- Oaxaca
- Ogden
- Oceanside
- Orville
- Oberhausen
- OMAN
- Orillia
- Odisha
- ostrava
- Oregon City
- Oban
- Oswestry
- Ocala
- Ozark
- Oberlin
- Oroville
- Oshkosh
- Oneonta
- Omsk
- Ouagadougou
- Oran
- Offenbach
- Orange City
- Oakdale
- Offaly
- Orono
- Orangeburg
- Oamaru
- Ormskirk
- Olney
- Olathe
- Opal
- OREGON
- Ossining
- Opelika
- oakwood
- Oconomowoc
- Oak Park
- Oneida
- Orlando Florida
- Owatonna
- Owen sound
- Orion
- Overton
- Owensboro
- Outer Banks
- olbia
- Oahu
- Overland Park
- organ
- Owen
- Osborne
- Oswald
- ottwa
- Omen
- ONTARIO
- Old Bridge
- Oak Creek
- Oceana
- Orania
- Ocean
- oyster bay
- ommen
- Okehampton
- Olovo
- Oberon
- Olive
- Otsego
- Ostia
- Otorohanga
- Olivia
- Olean
- Orinda
- Otley
- Oakleigh
- Old town road
- Opotiki
- Ohakune
- Odesa
- OHIO
- ottoman
Orden på listan City or town with O kommer från spelare av ordleken Stad, Land, Flod.