| Christchurch |
Consistuency of same name reformed 1983. |
| Christchurch |
Constituency of same name also existed 1832-1918. |
| Christchurch and Lymington |
|
| Cirencester |
Full name (in Craig 2) Gloucestershire, Cirencester |
| Cirencester and Tewkesbury |
Full name (in Craig 3,4) Gloucestershire, Cirencester and Tewkesbury |
| Cities of London and Westminster |
Constituency of same name reformed 1997. |
| Cities of London and Westminster |
Constituency of same name also existed 1950-1974ยน. |
| Cities of London and Westminster Paddington |
|
| City of Chester |
|
| City of London |
|
| City of London and Westminster South |
|
| Clackmannan |
|
| Clackmannan and Eastern |
Full name (in Craig 3) Stirlingshire and Clackmannanshire, Clackmannan and Eastern |
| Clackmannan and East Stirlingshire |
Full name (in Craig 4) Stirlingshire and Clackmannanshire, Clackmannan and East Stirlingshire |
| Clackmannanshire and Kinross-shire |
|
| Clacton |
The Boundary Commission created this as a new seat, consisting of essentially the former Harwich constituency, minus the town of Harwich itself and a few nearby villages, plus St. Osyth and Weeley, moved from the old North Essex constituency |
| Clare |
|
| Clare East |
|
| Clare West |
|
| Clay Cross |
Full name (in Craig 3) Derbyshire, Clay Cross |