NCIS
The abbreviation NCIS stands for:
- Namibia Central Intelligence Service , Namibian intelligence service
- National Coalition of Independent Scholars , Primary Private Scholars , San Antonio
- National Criminal Intelligence Service , predecessor of the Serious Organized Crime Agency , UK
- Naval Criminal Investigative Service , US Navy law enforcement agency
- NCIS , original title of Navy CIS , American television series
- NCIS: Los Angeles , original title of Navy CIS: LA , American television series
- NCIS: New Orleans , Original Navy CIS: New Orleans , American TV series
