IAS

• IAS Cargo Airlines
• IAS Limited
• IAS machine
• IEEE Industry Applications Society
• Iași International Airport
• Image Analysis & Stereology
• Immunisation Awareness Society
• Indian Academy of Sciences
• Indian Administrative Service
• Indicated airspeed
• Institut aéronautique et spatial
• Institute for Advanced Study
• Institute for Advanced Study (disambiguation)
• Institute for Advanced Study at University of Minnesota
• Institute for Anarchist Studies
• Institute of Advanced Study (Durham)
• Institute of Aerospace Sciences
• Institute of Agricultural Sciences, Banaras Hindu University
• Instituto Ayrton Senna
• Insulin autoimmune syndrome
• Internal Audit Service (European Commission)
• Internal anal sphincter
• International AIDS Society
• International Accounting Standards
• International American School of Warsaw
• International Association of Scientologists
• International Association of Sufism
• International Automated Systems
• International Financial Reporting Standards
• Internet Authentication Service
• Investment Analysts Society of Southern Africa
• Iowa Archeological Society
• Iranian Arachnological Society
• Izquierda Asturiana
• Oracle Application Server