Union of Socialist Youth (Poland)
| Union of Socialist Youth Związek Młodzieży Socjalistycznej  | |
|---|---|
| Founded | 10 September 1957 | 
| Preceded by | Union of Polish Youth | 
| Dissolved | 1976 | 
| Merged into | Polish Socialist Youth Union | 
| Headquarters | Warsaw, Polish People's Republic | 
| Membership | 1.2 million (1975) | 
| Ideology | Socialism, Communism | 
| Mother party | Polish United Workers' Party | 
| National affiliation | Front of National Unity | 
| International affiliation | World Federation of Democratic Youth (WFDY) | 
| Newspaper | Sztandar Młodych | 
Union of Socialist Youth (Polish: Związek Młodzieży Socjalistycznej) (ZMS) was a Communist youth movement, the main youth organization in the Polish People's Republic from 1957 to 1976 when it was merged with two other organizations to create the Polish Socialist Youth Union.