Germany
:
Private railways & industry
:
O
:
ONRAIL
Germany
:
Private railways & industry
:
O
:
Opel
Germany
:
Private railways & industry
:
O
:
OREG: Odenwaldbahn (Rhein-Main-Neckar)
Germany
:
Private railways & industry
:
O
:
OSB: Ortenau S-bahn
Germany
:
Private railways & industry
:
P
:
PBSV
Germany : Private railways & industry : O : OLA: Ostseeland Verkehr GmbH : OME: Ostmecklenburgische Eisenbahn
Germany : Private railways & industry : P : PEG: Prignitzer Eisenbahn GmbH