CSIR

CSIR may refer to:


 * Organizations:
 * Council for Scientific and Industrial Research, an earlier name for the Commonwealth Scientific and Industrial Research Organisation, Australia between the years 1926 and 1949
 * Council for Scientific and Industrial Research – Ghana
 * Council for Scientific and Industrial Research, South Africa
 * Council of Scientific and Industrial Research, India
 * Italian Expeditionary Corps in Russia, or Corpo di Spedizione Italiano in Russia


 * Technology:
 * Channel state information at the receiver


 * Medicine:
 * Cross-sectional Interventional radiology