U.S. Cities with O

• Orlando

  City in Florida, known for theme parks

• Oakland

  City in California, across from San Francisco

• Omaha

  City in Nebraska

• Oklahoma City

  Capital city of Oklahoma

• Ogden

  City in Utah

• Olympia

  Capital city of Washington State

• Ocean City

  City in Maryland, coastal resort

• Oregon City

  City in Oregon

• Oxford

  City in Mississippi

• Odessa

  City in Texas

• Orange City

  City in Florida

• Oswego

  Real U.S. city; Oswego, New York is one

• Oxnard

  Real U.S. city in California, on the coast

• Oshkosh

  Real U.S. city in Wisconsin, well known

• Orleans

  Real U.S. city name; Orleans, Iowa exists

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• Ozark

  Real U.S. city name; found in AL, AR, and MO

• Ocala

  Real U.S. city in Florida, Ocala fits

• Orange Beach
• Orem
• Ottawa

  Real U.S. city name; Ottawa in IL and KS

• Oneonta
• Onalaska
• Overland Park
• Olathe
• Orion
• Osceola
• Olney
• Oconomowoc
• Orland
• Orangeburg
• Oakville
• Oroville
• Orono
• Oakley
• Oakland California
• Oakdale
• Owatonna
• Overton
• Osage
• Origen
• Orangetown
• Opelousas
• Oneida
• Owensboro
• Ossining
• opal
• Oldenburg
• old bridge
• Okeechobee
• Ogunquit
• Oak Grove
• Oak Brook
• Outer banks
• Old Town

The words in the list U.S. Cities with O come from players of the word game City, Country, River.