NCIS
The abbreviation stands for NCIS
- National Criminal Intelligence Service, the predecessor of the Serious Organised Crime Agency of Great Britain
- Naval Criminal Investigative Service, the law enforcement agency of the U.S. Navy
- The original title of the U.S. crime series NCIS
- The original title NCIS: Los Angeles of the U.S. crime series NCIS: Los Angeles, offshoots of NCIS
- Disambiguation
- Abbreviation