The Young Socialists is the name given to the youth sections of several socialist and social democratic political parties.

The youth section of the British Labour Party was called the Young Socialists from 1960, renamed the Labour Party Young Socialists (LPYS) in 1965, until being renamed again as 'Young Labour' in the mid-1990s. It was under the control of the Trotskyist Militant Tendency from 1970 onwards and had a highpoint of 581 branches in 1985. In 1987 the Neil Kinnock Labour Party leadership removed the LPYS's leadership and effectively closed it down down by dissolving most of its elected structures and reducing its upper age limit from 26 to 23. By 1990 the number of LPYS branches had fallen to 52.

"Young Socialists" is also the name of the youth organization of the Socialist Workers Party in the U.S. and theCommunist Leagues in a number of other countries, informally known as the Pathfinder Tendency.