Olympia WA, Oklahoma City OK, Omaha NE, Ogden UT, Orlando FL and Oakland CA are U.S. cities. They begin with the letter O.
Orangeburg, South Carolina
Oslo
Oruro is a city in Bolivia
Oak Park is a city in Michigan. It begins with the letter O.
Ordos is a city in Inner Mongolia, China.
Odessa
There are no cities in Greece that begin with the letter O. Oia is a small town in Greece.
Baltimore Orioles. Orlando Magic. Oklahoma City Thunder. Oakland A's.
Ozark is a city in Arkansas
Oslo is the capital city in Norway. Ottawa is the capital city in Canada.
O'Fallon is a city in St. Clair County, Illinois.
Olney and O'Donnell