CSIS may refer to:
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Canadian Security Intelligence Service
The Canadian Security Intelligence Service (CSIS, ; french: Service canadien du renseignement de sécurité, ''SCRS'') is Canada's primary national intelligence agency. It is responsible for collecting, analysing, reporting and disseminating i ...
, Canada's primary national intelligence service
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Center for Strategic and International Studies
The Center for Strategic and International Studies (CSIS) is an American think tank based in Washington, D.C. CSIS was founded as the Center for Strategic and International Studies of Georgetown University in 1962. The center conducts poli ...
, a think tank in the US
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Centre for Strategic and International Studies
The Centre for Strategic and International Studies (CSIS) is a non-profit organization based in Indonesia which has served as a think tank on social, international, political and economical issues. CSIS was founded on Sept 1, 1971 by a group of ...
, a think tank in Jakarta, Indonesia
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Civil Service Islamic Society, a British non-political, voluntary society
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Container Shipping Information Service, a trade group for the container shipping industry
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