Counterintelligence Service may refer to:
- Counterintelligence Corps (United States Army) (1917-1961)
- KOS (Yugoslavia), the Kontraobavještajna služba, the counterintelligence service of the Yugoslav People's Army
- MI5, the United Kingdom's internal counterintelligence and security agency
- Internal Counter-Intelligence Service, fictional British military organization from the UNIT audio plays by Big Finish
Famous quotes containing the word service:
“The ability to think straight, some knowledge of the past, some vision of the future, some skill to do useful service, some urge to fit that service into the well-being of the community,—these are the most vital things education must try to produce.”
—Virginia Crocheron Gildersleeve (1877–1965)