NCIS or N.C.I.S. may refer to: Law enforcement National Criminal Intelligence Service, the predecessor to the Serious Organised Crime Agency of the United Kingdom Naval Criminal Investigative Service, a United States law enforcement and intelligence agency that primarily investigates crimes in the U.S. Navy and Marine Corps National Criminal Investigation Service (Kripos), a special agency of the Norwegian Police Service Television NCIS (franchise) NCIS (TV series), since 2003, a United States television show about a group of fictional agents of the Naval Criminal Investigative Service based in Washington, DC NCIS (soundtrack), four soundtracks of music featured on the original NCIS TV series NCIS: Los Angeles, a 2009 spin-off from NCIS, a show about fictional undercover NCIS Office of Special Projects agents based in Los Angeles NCIS: New Orleans, a 2014 second spin-off from NCIS, a show about fictional NCIS agents based in New Orleans NCIS: Hawaiʻi, a 2021 third spin-off from NCIS, a show about fictional NCIS agents based in Hawaii Other uses National Coalition of Independent Scholars NATO Common Interoperability Standards Nothing's Carved in Stone, a Japanese rock band formed in 2009 See also National Crime Information Center (NCIC) NSIS (disambiguation) JAG (disambiguation)