| Caerfyrddin |
Welsh name: Carmarthen. |
| Caernarfon |
See also alternative (English) spelling Caernarvon, used in sources 1950-1983. |
| Caernarvon |
See also alternative (Welsh) spelling Caernarfon, used in sources from 1983. Full name (in Craig 4) Caernarvonshire, Caernarvon. |
| Caernarvon District of Boroughs |
|
| Caernarvonshire |
Constituency of same name also existed 1918-1950. |
| Caernarvonshire |
Constituency of same name also existed 1832-1885. |
| Caerphilly |
Full name (in Craig 3,4) Glamorganshire, Caerphilly |
| Caithness |
|
| Caithness and Sutherland |
|
| Caithness, Sutherland and Easter Ross |
|
| Calder Valley |
|
| Calne |
|
| Camberwell and Peckham |
|
| Camberwell Dulwich |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Camberwell North |
|
| Camberwell North West |
|
| Camberwell Peckham |
Constituency first used at the February General election of 1974 (28/02/1974). |
| Camborne |
Full name (in Craig 2,3) Cornwall, Camborne |
| Camborne and Redruth |
Successor to Falmouth and Camborne |
| Cambridge |
|
| Cambridgeshire |
|
| Cambridgeshire North East |
|
| Cambridgeshire North West |
|
| Cambridgeshire South |
|
| Cambridgeshire South East |
|