A
| Railway name | Locale | Operating years | Comments |
|---|---|---|---|
| Alberta Railway and Navigation Company | Acquired by CPR. | ||
| Alberta and Great Waterways Railway | Acquired by NAR. | ||
| Albion Railway | central Nova Scotia | Second railway in British North America. Abandoned. | |
| Algoma Central Railway | northwestern Ontario | 1899–1995 | Acquired by WC. |
| Algoma Eastern Railway | Acquired by CPR in 1930 by 999-year lease | ||
| Alma and Jonquieres Railway | Merged into RS. | ||
| Atlantic and North-West Railway | southeastern Quebec, central Maine | Acquired by CPR. | |
| Atlantic, Quebec and Western Railway | Acquired by CNR. |
Read more about this topic: List Of Defunct Canadian Railways