Oldau (Municipality / Lower Saxony)
Oldeborg (Municipality / Lower Saxony)
Oldemühle (Municipality / Lower Saxony)
Oldenburg in Oldenburg (City / Lower Saxony)
Oldenbüttel (Municipality / Lower Saxony)
Oldendorf (Municipality / Lower Saxony)
Oldendorf (Luhe) (Municipality / Lower Saxony)
Oldendorf an der Göhrde (Municipality / Lower Saxony)
Oldendorf bei Elze, Leine (Municipality / Lower Saxony)
Oldendorf II;Oldendorf bei Bornsen, Kreis Uelzen (Municipality / Lower Saxony)
Oldendorf, Kreis Bremervörde (Municipality / Lower Saxony)
Oldendorf, Kreis Celle (Municipality / Lower Saxony)
Oldendorf, Kreis Cloppenburg (Municipality / Lower Saxony)
Oldendorf, Kreis Osterholz (Municipality / Lower Saxony)
Oldendorf, Kreis Stade (Municipality / Lower Saxony)
Oldendorf, Nordheide (Municipality / Lower Saxony)
Oldendorf, Wiehengebirge (Municipality / Lower Saxony)
Oldendorfer Mühle (Municipality / Lower Saxony)
Oldendorp (Municipality / Lower Saxony)
Oldenhöfen (Municipality / Lower Saxony)
Oldenrode, Harz (Municipality / Lower Saxony)
Oldenrode, Solling (Municipality / Lower Saxony)
Oldenstadt, West (Municipality / Lower Saxony)
Oldershausen bei Northeim (Municipality / Lower Saxony)
Oldershausen, Winsener Marsch (Municipality / Lower Saxony)
Oldersum (Municipality / Lower Saxony)
Oldewage (Municipality / Lower Saxony)
Oldhorst (Municipality / Lower Saxony)
Oldorf (Municipality / Lower Saxony)
Olenhusen, Kreis Göttingen (Municipality / Lower Saxony)
Ollen, Kreis Wesermarsch (Municipality / Lower Saxony)
Ollenharde (Municipality / Lower Saxony)
Ollsen, Nordheide (Municipality / Lower Saxony)
Ölper (Municipality / Lower Saxony)
Ölsburg (Municipality / Lower Saxony)
Oltmannsfehn (Municipality / Lower Saxony)
Olxheim (Municipality / Lower Saxony)