Irish Workers' Party was created in 1948.
Independent Irish Party was created in 1852.
Irish Mental Hospital Workers' Union was created in 1912.
Irish Parliamentary Party was created in 1874.
Workers Party of Barbados was created in 1985.
Burundi Workers' Party was created in 1979.
Workers Party of Jamaica was created in 1978.
Workers' Vanguard Party was created in 1978.
Workers Party of Finland was created in 1999.
Workers' Party of Singapore was created in 1957.
Marxist Workers Party was created in 1937.
Mexican Workers' Party was created in 1975.
Burma Workers Party was created in 1950.