The Southern Railway was formed by the grouping of the London and South Western Railway , the London Brighton & South Coast Railway and the South Eastern & Chatham Railway on the 1st. January 1923. The Southern was nationalised in 1948, becoming the Southern Region of British Railways.
| Arundel (ex. LBSCR) |
| Caesarea (ex. LSWR) |
| Hantonia (ex. LSWR) |
| Normannia (ex. LSWR) |
| Ardena (ex. LSWR) |
| Lorina (ex. LSWR) |
| Dinard |
| St. Briac |
| Deal |
| Isle of Thanet |
| Maid of Kent |
| Worthing |
| Canterbury |
| Isle of Guernsey |
| Isle of Jersey |
| Isle of Sark |
| Brighton |
| Invicta |