G
| Railway name | Locale | Operating years | Comments |
|---|---|---|---|
| Georgian Bay and Seaboard Railway | Acquired by CPR. | ||
| Glengarry and Stormont Railway | |||
| Grand Falls Central Railway | central Newfoundland | 1956–1977 | Abandoned. |
| Grand River Railway | Acquired by CPR, merged into CPEL. | ||
| Grand Trunk Pacific Railway | Manitoba, Saskatchewan, Alberta, British Columbia | 1914–1920 | Nationalized into CNR. |
| Grand Trunk Railway | Ontario, Quebec, New England | 1852–1923 | Nationalized into CNR. |
| Great North West Central Railway | Acquired by CPR. | ||
| Great Northern Railway of Canada | |||
| Great Western Railway | southwestern Ontario | 1853–1884 | Acquired by GTR |
| Guelph and Goderich Railway | Acquired by CPR. |
Read more about this topic: List Of Defunct Canadian Railways