Europe Oleron, Lower Charente, France (main entry)
Oleron (Island) Rochefort (directional)
Oleron, Lower Pyrenees, France (main entry)
Gave River Pau (directional)
Olika, Volhinia, Poland (main entry)
Lucko (directional)
Olinda (main entry)
Pernambuco Olita, Navarre, Spain (main entry)
Navarre, King of Tudela (directional)
Oliva, West Prussia (main entry)
Germany, Emperor of Sweden, King of Poland, King of Gulf of Dantzic Dantzic (directional)
Oley, Bucks County, Pennsylvania, United States (main entry)
Olive, Morgan County, Ohio, United States (main entry)
Olive, Meigs County, Ohio, United States Olivenca, Estremadura, Spain (main entry)
Portugal Badajoz (directional)
Ollorton, Nottinghamshire, United Kingdom (main entry)
Maun River Newark (directional)
London (directional)
Olmedo, Leon, Spain (main entry)
Adaja River Valladolid (directional)
Olmutz, Moravia, Austria (main entry)
Olmutz, Olmutz, Moravia, Austria (main entry)
Morau River Prussia, King of Russia, Emperor of Austria, Emperor of Austerlitz, Battle of Vienna (directional)
Breslau (directional)
Olney, Buckinghamshire, United Kingdom (main entry)
Ouse River Northampton (directional)
London (directional)
Olonetz, Novogorod, Russia (main entry)
Olonetz, Russia Petrozavodsk Olonetz, Olonetz, Russia (main entry)
Olonzo River Ladoga (Lake) Petersburg (directional)
Olonetz Mountains (main entry)
Russia Sweden Olonne, Vendée, France (main entry)
Fontenay le Comte (directional)
Olphen, Prussian Westphalia (main entry)
Munster (directional)
Olten, Soleure, Switzerland (main entry)
Aar River Soleure (directional)