| South Molton |
Full name (in Craig 2,3) Devon, South Molton |
| Southport |
Full name (in Craig 2) Lancashire, Southport |
| South Ribble |
|
| South Shields |
|
| South Shropshire |
|
| Southwark |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1832-1885. |
| Southwark |
Constituency of same name also existed 1950-1974¹. |
| Southwark and Bermondsey |
|
| Southwark Bermondsey |
Constituency of same name also existed 1974¹-1983. |
| Southwark Bermondsey |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1885-1918. |
| Southwark Central |
|
| Southwark Dulwich |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Southwark North |
|
| Southwark North and Bermondsey |
|
| Southwark Peckham |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Southwark Rotherhithe |
|
| Southwark South East |
|
| Southwark West |
|
| Sowerby |
Full name (in Craig 2,3,4) Yorkshire (West Riding), Sowerby |
| Spalding |
Full name (in Craig 2) Lincolnshire, Spalding |
| Spelthorne |
Full name (in Craig 3,4) Middlesex, Spelthorne |
| Spennymoor |
Full name (in Craig 3) Durham, Spennymoor |
| Spen Valley |
Full name (in Craig 2,3) Yorkshire (West Riding), Spen Valley |
| Spen Valley |
|
| Stafford |
Constituency of same name also existed 1832-1950. |