YCL may refer to:
- All-Union Leninist Young Communist League, the youth wing of the Communist Party of the Soviet Union
- YCL, the IATA code for Charlo Airport in Charlo, New Brunswick, Canada
- York County Libraries, a public library system in York County, Pennsylvania, United States
- Young Calvinist League, a youth ministry in Canada and the United States
- Young Communist League, list of various organisations, some with variant names
- Young Communist League, the youth wing of the historical Communist Party of Australia (1920–1991)
- Young Communist League (Great Britain) the youth wing of the Communist Party of Britain
- Young Communist League of Canada the youth wing of the Communist Party of Canada
- Young Communist League, Nepal is the youth wing of the Communist Party of Nepal (Maoist)
- Young Communist League, USA the youth wing of the Communist Party USA
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