CSIS
# CSIS

CSIS may refer to:

* Canadian Security Intelligence Service, Canada's primary national intelligence service
* Center for Strategic and International Studies, a think tank in the US
* Centre for Strategic and International Studies, a think tank in Jakarta, Indonesia
* Civil Service Islamic Society, a British non-political, voluntary society
* Container Shipping Information Service, a trade group for the container shipping industry
* China seismic intensity scale, a national standard in the People's Republic of China
