The Broad Left was a political faction within the National Union of Students of the United Kingdom (NUS) during the 1970s. It consisted of a working relationship between the Labour Party, the Liberal Party, Plaid Cymru, the Communist Party of Great Britain (CPGB), and other, non-aligned, supporters in order to work as a single voting bloc against the Conservative and some Trotskyist student groups. It held the union presidency from 1973 to 1982.

The Broad Left movement should not be confused with the Student Broad Left movement, a later NUS faction.