| Roxburghshire, Selkirkshire and Peeblesshire (1955 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Ruislip Northwood (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name reformed 1983. |
| Scarborough and Whitby (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3,4) Yorkshire (North Riding), Scarborough and Whitby. Constituency of same name reformed 1997. |
| Shoreditch and Finsbury (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Smethwick (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Southall (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| South Angus (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 4) Aberdeenshire and Kincardineshire, South Angus |
| South Ayrshire (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3,4) Ayrshire and Bute, South Ayrshire |
| Southwark (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1832-1885. |
| Stepney (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Stirling and Falkirk Burghs (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Stockton-on-Tees (1832 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Stoke Newington and Hackney North (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| St Pancras North (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Surbiton (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1983-1997. |
| Tavistock (1832 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3,4) Devon, Tavistock |
| Tonbridge (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 3,4) Kent, Tonbridge |
| Torquay (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3) Devon, Torquay |
| Torrington (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 4) Devon, Torrington |
| Tottenham (1950 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name also existed 1885-1918, and reformed 1983. |
| Uxbridge (1885 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). Full name (in Craig 2,3,4) Middlesex, Uxbridge. Constituency of same name reformed 1983. |
| Walthamstow East (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Walthamstow West (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Wandsworth Central (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Wandsworth Clapham (1918 - 1974) |
Constituency first used at the February General election of 1974 (28/02/1974). |