Oslo
Oruro is a city in Bolivia
Oak Park is a city in Michigan. It begins with the letter O.
Odessa
There are no cities in Greece that begin with the letter O. Oia is a small town in Greece.
Orangeburg, South Carolina
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
Olympia WA, Oklahoma City OK, Omaha NE, Ogden UT, Orlando FL and Oakland CA are U.S. cities. They begin with the letter O.
Lions can be described as overpowering. The word starts with the letter o.