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 UK Naval Criminal Investigative Service, a US 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 US television show about a group of fictional agents of the Naval Criminal Investigative Service based in Washington, D.C. 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 NCIS: Sydney, a 2023 fourth spin-off from NCIS, a show about fictional NCIS agents and Australian Federal Police based in Sydney, Australia NCIS: Origins, a 2024 fifth spin-off from NCIS, a prequel show about original protagonist Leroy Jethro Gibbs, a fictional NCIS agent, in his early years NCIS: Tony & Ziva, a 2025 sixth spin-off from NCIS, this series reunites Tony DiNozzo and Ziva David and centers on the events that shaped their storyline in Europe NCIS: New York, a 2026 seventh spin-off from NCIS, this series has Sam Hannah returning to New York, after appearing for 14 Seasons on NCIS: Los Angeles and recurring on NCIS and NCIS: Hawaiʻi
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)