Railway Company Acronyms
- A&STR
- Amherstburg & St. Thomas Railway
- B&BR
- Buffalo & Brantford Railway
- B&LHR
- Buffalo & Lake Huron Railway
- B&WR
- Brockville & Westport Railway
- BB&GR
- Buffalo, Brantford & Goderich Railway
- BN&PBR
- Brantford, Norfolk & Port Burwell Railway
- BW&NWR
- Brockville, Westport & Northwestern Railway
- BW&SSMR
- Brockville, Westport & Sault Ste. Marie Railway
- CNWR
- Canada North-West Railway
- CNoR
- Canadian Northern Railway
- CNOR
- Canadian Northern Ontario Railway
- CNR
- Canadian National Railways
- CPR
- Canadian Pacific Railway
- CSR
- Canada Southern Railway
- CSWR
- Canada South Western Railway
- CVR
- Credit Valley Railway
- Central Vermont Railway
- DL&WRR
- Delaware, Lackawanna & Western Railroad
- ERR
- Erie Railroad
- FFR
- Fenelon Falls Railway
- G&BR
- Galt & Berlin Railway
- G&GR
- Galt & Guelph Railway
- GB&LER
- (Grand Trunk) Georgian Bay & Lake Erie Railway
- GB&SR
- Georgian Bay & Seaboard Railway
- GB&WR
- Georgian Bay & Wellington Railway
- GRR
- Grand River Railway
- GTPR
- Grand Trunk Pacific Railway
- GTR
- Grand Trunk Railway
- GTRS
- Grand Trunk Railway System
- GSWR
- Great Southwestern Railway
- GWR
- Great Western Railway
- H&BR
- Harrisburg & Brantford Railway
- H&LER
- Hamilton & Lake Erie Railway
- H&NWR
- Hamilton & North Western Railway
- H&PDR
- Hamilton & Port Dover Railway
- H&SWR
- Hamilton & South Western Railway
- H&TR
- Hamilton & Toronto Railway
- HER
- Hydro-Electric Railways
- JBR
- James Bay Railway
- L&GJR
- London & Grand Junction Railway
- L&PSR
- London & Port Stanley Railway
- LE&NR
- Lake Erie & Northern Railway
- LFF&ORVR
- Lindsay, Fenelon Falls & Ottawa River Valley Railway
- LH&BR
- London, Huron & Bruce Railway
- LSJR
- Lake Simcoe Junction Railway
- LVRR
- Lehigh Valley Railroad
- MCR
- Macaulay Central Railway
- MCRR
- Michigan Central Railroad
- MER
- Metropolitan Electric Railway
- MP&IR
- ?? & ? Railway
- MRC
- Midland Railway of Canada
- MSR
- Metropolitan Street Railway Company of Toronto
- N&DRR
- Niagara & Detroit Rivers Railway
- N&NWR
- Northern & North Western Railways
- N&PJR
- Northern & Pacific Junction Railway
- NER
- Northern Extension Railways
- NNW&SSMR
- Northern, North Western & Sault Ste. Marie Railway
- NJR
- Napierville Junction Railway
- NR
- Norfolk Railway Company
- NRC
- Northern Railway (Company) of Canada
- NSC&TR
- Niagara, St. Catherines & Toronto Railway
- NSR
- North Simcoe Railway
- NTR
- National Transcontinental Railway
- NYCRR
- New York Central Railroad
- NYR
- North Yonge Railways
- OS&HURR
- Ontario, Simcoe & Huron Union Railroad
- P&BR
- Preston & Berlin Railway
- P&BJR
- Preston & Berlin Junction Railway
- PMRR
- Pere Marquette Railroad
- PD&LHR
- Port Dover & Lake Huron Railway
- PD&TR
- Port Dalhousie & Thorold Railway
- PHL&BR
- Port Hope, Lindsay & Beaverton Railway
- PW&PPR
- Port Whitby & Port Perry Railway
- S&AR
- Schomberg & Aurora Railway
- S&HR
- Stratford & Huron Railway
- SCTC
- St. Clair Tunnel Company
- T&GR
- Toronto & Goderich Railway
- Toronto & Guelph Railway
- T&OR
- Toronto & Ottawa Railway
- T&NOR
- Temiskaming & Northern Ontario Railway
- T&NR
- Toronto & Nipissing Railway
- T&YRR
- Toronto & York Radial Railway
- TBLR
- Toronto Belt Line Railway Company
- TG&BR
- Toronto, Grey & Bruce Railway
- TH&BR
- Toronto, Hamilton & Buffalo Railway
- TLS&LHURR
- Toronto, Lake Simcoe & Lake Huron Union Railroad
- TS&MJR
- Toronto, Simcoe & Muskoka Junction Railway
- TRC
- Toronto Railway Company
- TTC
- Toronto Transit Commission
- TTC
- Toronto Transportation Commission
- VR
- Victoria Railway
- W&LER
- Woodstock & Lake Erie Railway (and Harbour) Company
- W&OR
- Whitney & Opeongo Railway
- WG&BR
- Wellington, Grey & Bruce Railway
- WJR
- Waterloo Junction Railway
- WPP&LR
- Whitby, Port Perry & Lindsay Railway
- WR
- Welland Railway