British Political Parties
A history of British political parties.
Active
- Democratic Unionist Party
- Ulster Unionist Party
Defunct
- Tory Party (first and second) 
- merged into the Liberal Democrats Party in 1988
 
- Social Democratic Party - merged into the Liberal Democrats Party in 1988
 
- Liberal Unionist Party - split from the Liberal Party in 1888, merged into the Conservative Party in 1912
 
- Unionist Party - the Scottish wing of the Liberal Unionist Party which remained distinct, but sat with the Conservative Party in the British Parliament