| Cornwall Northern |
Full name (in Craig 3) Cornwall, Northern |
| Cornwall South East |
|
| Cornwall Western |
|
| Coventry |
|
| Coventry East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Coventry East |
|
| Coventry North |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Coventry North East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Coventry North West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Coventry South |
Constituency first used at the February General election of 1974 (28/02/1974). Constituency of same name reformed 1997. |
| Coventry South |
Constituency of same name also existed 1950-1974ยน. |
| Coventry South East |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Coventry South West |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Coventry West |
|
| Cowdenbeath and Kirkcaldy |
|
| Cramlington and Killingworth |
|
| Crawley |
|
| Crewe |
Full name (in Craig 2,3,4) Cheshire, Crewe |
| Crewe and Nantwich |
|
| Cricklade |
Full name (in Craig 2) Wiltshire, Cricklade |
| Crosby |
|
| Croydon |
|
| Croydon Central |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Croydon East |
|
| Croydon East |
|