SIAC

SIAC is an acronym used by several bodies:

Securities Industry Automation Corporation, a subsidiary of the NYSE Euronext
Singapore International Arbitration Centre, a not-for-profit international arbitration organisation
Sistema Integrado de Artilleria de Campaña (English: Integrated Field Artillery System), a modern field howitzer
La Sociedad Interamericana de Astronomía en la Cultura, an organization in the field of cultural astronomy in the Americas
Southern Indiana Athletic Conference, an American high school athletic conference
Southern Intercollegiate Athletic Conference, an NCAA Division II collegiate athletic conference
Special Immigration Appeals Commission, a superior court of record in the United Kingdom

See also