YMACA stands for Young Marinduqueno Association of the Capital Area (Philippines) YMACA stands for Young Men's Anti-Christian Association (online community)
YLTS stands for Young Life and Times Survey (Northern Ireland)
YLVC stands for Youth Leaders for Vital Communities
YLRL stands for Young Ladies' Radio League (organized in 1939)
YLSIG stands for Young Learners Special Interest Group
YLSL stands for Youth Leadership St. Louis (est. 1989; St. Louis, MO)
YLSN stands for Youth Leadership Support Network (Washington, DC)
YLSO stands for Yorba Linda Symphony Orchestra (Yorba Linda, CA)