Local governments
| Name | Type | Notes |
|---|---|---|
| Caerphilly County Borough Council | Borough Council | |
| Calderdale DC | District Council | |
| Calderdale Metropolitan Borough Council | Borough Council | |
| Camberwell Borough Council | London Borough | |
| Cambridge Borough Council | Borough Council | |
| Cambridge City Council | City Council | |
| Cambridgeshire County Council | County Council | |
| Camden Borough Council | London Borough | |
| Cannock Chase District Council | District Council | |
| Canterbury City Council | City Council | |
| Caradon District Council | District Council | |
| Cardiff Borough Council | City Council | |
| Cardiff City Council | City Council | |
| Cardiganshire County Council | County Council | |
| Carickmacross District Council | District Council | |
| Carlisle Borough Council | Borough Council | |
| Carlisle City Council | City Council | |
| Carlow County Council | County Council | |
| Carlow UDC | District Council | |
| Carmarthen Borough Council | Borough Council |