National Socialist Party - UK - was created in 1916.
National Socialist Party - UK - ended in 1941.
United Socialist Party - UK - was created in 2004.
Socialist Workers Party - UK - was created in 1977.
The UK's ruling Labour party are a democratic socialist party.
Free Party - UK - was created in 2001.
Peace Party - UK - was created in 1996.
UK Independence Party was created in 1993.
Christian Party - UK - was created in 2005.
UK Unionist Party was created in 1995.
New Party - UK - was created in 1931.
Humanist Party - UK - was created in 1984.
Liberal Party - UK - was created in 1859.