Protestant Unionist Party was created in 1966.
UK Unionist Party ended in 2008.
Liberal Unionist Party ended in 1912.
United Ulster Unionist Party ended in 1984.
Ulster Popular Unionist Party ended in 1995.
Unionist Party of Northern Ireland ended in 1981.
Liverpool Protestant Party ended in 1974.
UK Unionist Party was created in 1995.
Progressive Unionist Party was created in 1979.
Liberal Unionist Party was created in 1886.
United Ulster Unionist Party was created in 1975.
Unionist Party - South Africa - was created in 1910.