Irish Workers' Party was the name used by the communist party in the Republic of Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

 from 1948 until 1962. The Southern section of the party had suspended its activities from 1941 onwards because of police interference in its activities and the difficulties imposed by the emigration of many members to find work in England. Members were encouraged instead to join the Labour Party (though they were subsequently expelled). After the Second World War the party was re-established in the South in 1948 under the name Irish Workers' League. In 1962 the name was changed to Irish Workers’ Party, and in 1970 it merged with the Communist Party of Northern Ireland

Communist Party of Northern Ireland

The Communist Party of Northern Ireland was a small communist party operating in Northern Ireland. Its origins lay in the 1941 split in the Communist Party of Ireland, which also produced the Irish Workers' Party in the Republic of Ireland...

 to reconstitute the all-Ireland Communist Party of Ireland

Communist Party of Ireland

The Communist Party of Ireland is a small all-Ireland Marxist party, founded in 1933. An earlier party, the Socialist Party of Ireland, was renamed the Communist Party of Ireland in 1921 on its affiliation to the Communist International but was dissolved in 1924. The present-day CPI was founded in...

.