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
- Chennai Super Kings
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