CIRS

CIRS may refer to:


 * CIRS (AM), a Canadian radio station
 * Center for International and Regional Studies, an educational institution in Qatar
 * Centre for Interactive Research on Sustainability, a building at the University of British Columbia
 * Chinmaya International Residential School, a private boarding school near Coimbatore, India
 * Composite Infrared Spectrometer, an instrument in the Cassini-Huygens spacecraft
 * Interest rate swap, an interest rate derivative