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