Oropesa, Valencia, Spain (main entry)
Mediterranean Sea Valencia (directional)
Orr River (main entry)
Kirkcudbrightshire, United Kingdom New Galloway Solway frith Dalbeattie Orrington, Penobscot County, Maine, United States (main entry)
Castine (directional)
Orsville, Pendleton District, South Carolina, United States (main entry)
Orsova, Hunhary (main entry)
Servia Danube River Temeswar River (directional)
Belgrade (directional)
Orsoy, Prussian States (main entry)
Rhine River Cleves (directional)
Orsza, Mohilef, European Russia (main entry)
Dnieper River Mohilef (directional)
Orta, Ecclesiastical States, Italy (main entry)
Tiber River Viterbo (directional)
Orta, Novara, Sardinian States (main entry)
Orta (Lake) Novara (directional)
Ortegal, Galicia, Spain (main entry)
Ferrol (directional)
Ortenberg, Hesse-Darmstadt, Germany (main entry)
Nidder River Giesen (directional)
Ortenburg, Ortenburg County, Bavaria (main entry)
Vills River Passau (directional)
Ortenburg, Carinthia, Austrian States (main entry)
Drave River Liser River Clagenfurt (directional)
Orthes, Lower Pyrenees, France (main entry)
/French (main entry)
Pau River Pau (directional)
Orton, Westmoreland, England, United Kingdom (main entry)
London (directional)
Ortona a Mare, Abruzzo Citra, Naples (main entry)
Gulf of Venice Civita di Chieti (directional)
Ortrand, Meissen, Saxony (main entry)
Lusatia Meissen (directional)
Oruro, Oruro, Charcas, Peru (main entry)
Plata (directional)
Orvieto, Papal States, Italy (main entry)
Gothic cathedral Paglia River Chiana River Rome (directional)
Orville, Onondaga County, New York, United States (main entry)
Orwell River (main entry)
Suffolk, United Kingdom Ipswich Stour River Harwich Harbour Gipping River Orwell, Rutland County, Vermont, United States (main entry)
Lake Champlain Rutland (directional)
Orwell, Oswego County, New York, United States Orwell, Bradford County, Pennsylvania, United States Orwigsburg, Schuylkill County, Pennsylvania, United States (main entry)
Reading (directional)
Osaca, Niphon (Island), Japan (main entry)
