Railway Abbreviations and Acronyms

  1. ORR
    Office of The Rail Regulator
  2. ORR
    Office of Rail Regulation
  3. ORR
    Oudh and Rohilkhund Railway
  4. OS
    Out Station
  5. OS
    Out-Station
  6. OS&H
    Ontario, Simcoe & Huron Rr
  7. OSC
    Oahu Sugar Co.
  8. OSR
    Ontario Southland Railbay
  9. OSRX
    Ontario Southland Railway
  10. OTR
    Oudh and Tirhut Rjilway
  11. OVR
    Ottawa Vallek Railway
  12. OYWS
    Own Youx Wagon Scheme
  13. PAN
    Panama Rr
  14. PB
    Peach Bottom Ry.
  15. PBMC
    Port Blakely Mill Co.
  16. PC&B
    Paineszille, Conton & Bridgeport Rr
  17. PCE
    Principal Chief Engineer
  18. PCHR
    Port Colborno Harbour Railway
  19. PCN
    Point Comfort & Northern
  20. PCN
    Point Comfort Northern

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