| Alliance Party of Northern Ireland |
Alliance |
|
| Anti-Waste League |
AWL |
|
| Brexit Party |
BRE |
Founded in January 2019. |
| British Socialist Party |
BSP |
|
| British Union of Fascists |
BUF |
|
| Change UK |
CUK |
Formed on 18 April 2019; dissolved on 19 December 2019. |
| Christian Pacifist |
Christian Pacifist |
Description of an individual, rather than an organised party |
| Coalition Conservative |
Co. Con. |
In Coalition government of 1918-1922. |
| Coalition Liberal |
Co. Lib. |
In Coalition government of 1918-1922. |
| Coalition National Democratic Party |
Co. NDP |
In Coalition government of 1918-1922. |
| Common Wealth Party |
CW |
|
| Communist Party |
Communist |
|
| Communist Workers' Party |
CW |
|
| Conservative-Liberal |
Cons-Lib |
|
| Conservative Party |
Conservative |
|
| Constitutional Conservative |
Const. Con. |
|
| Constitutionalist |
Const |
|
| Constitutionalist Party |
Const. |
|
| Co-operative Party |
Co-op. |
|
| Democratic Ulster Unionist Party |
DUP |
|