National Amalgamated Labourers' Union

{{short description|Former trade union of the United Kingdom}}

{{Use dmy dates|date=April 2022}}

{{Infobox union

| name = National Amalgamated Labourers' Union

| full_name = National Amalgamated Labourers' Union of Great Britain and Ireland

| image =

| founded = 1889

| dissolved = 1921

| merged = Transport and General Workers' Union

| members = 10,781 (1920)

| publication =

| location_country= United Kingdom

| affiliation = TUC, Labour, NTWF

| key_people = John Twomey (Gen Sec)

| headquarters = 1 St David's Place, Rutland Street, Swansea

| footnotes =

}}

The National Amalgamated Labourers' Union (NALU) was a trade union representing unskilled labourers in the United Kingdom.

The union was founded in 1889, initially based in Cardiff, and later in Swansea. Its membership long varied between 3,000 and 4,000, although by the 1910s, it was over 5,000.Arthur Marsh and John B. Smethurst, Historical Directory of Trade Unions, vol.5, p.474

The union affiliated to the National Transport Workers' Federation,{{cite book |last1=Coates |first1=Ken |last2=Topham |first2=Tony |title=The History of the Transport and General Workers' Union |volume=1, pt II |date=1991 |publisher=Basil Blackwell |location=Oxford |page=674}} and in 1922 it merged into the Transport and General Workers' Union.