CSK

CSK most often refers to Chennai Super Kings, an Indian cricket franchise. It may also refer to:

Companies

 * CSK Auto, a subsidiary of O'Reilly Auto Parts
 * CSK Holdings Corporation, a Japanese IT company

Schools

 * Carmel School (Kuwait), a Catholic school in Kuwait
 * Chan Sui Ki (La Salle) College, a high school in Hong Kong

Sports

 * CSK VVS Samara (ice hockey), a professional ice hockey team in Samara, Samara Oblast, Russia
 * Charlottenlund SK, a Norwegian sports club

Other

 * C-src tyrosine kinase, an enzyme
 * Color shift keying
 * Flightcraft, an American airline; see List of airline codes (F)
 * Claremont serial killer; see Claremont serial killings
 * Commander of the Order of the Star and Key of the Indian Ocean
 * Country code of the former country of Czechoslovakia
 * CSK, National Rail station code for Calstock railway station, Cornwall, England
 * ISO-4217 currency code of its currency, the Czechoslovak koruna