CSI

CSI may refer to:

CSI franchise

 * CSI (franchise)
 * CSI: Crime Scene Investigation, the original CSI television series, set in Las Vegas
 * CSI: Miami, the first spin-off series starring David Caruso
 * CSI: NY, the second spin-off series starring Gary Sinise
 * CSI: Cyber, the third spin-off series starring Patricia Arquette
 * CSI: Vegas, the fourth spin-off series and a sequel to the original
 * CSI: Trilogy, the three-part television event featuring the casts of CSI: Crime Scene Investigation, CSI: Miami, and CSI: NY
 * CSI (comics)
 * CSI (novels)
 * CSI (video games)
 * CSI: The Experience, a traveling exhibition

Music

 * Consorzio Suonatori Indipendenti, an Italian musical group
 * CSI:Ambleside, a 2008 album by British band Half Man Half Biscuit

Other arts, entertainment, and media

 * CSI Sanatan, 2023 Indian Telugu-language film by Sivashankar Dev
 * Carnaby Street (radio programme), Saturday morning Manx Radio broadcast featuring music and news from the 1960s

Enterprises and organizations

 * Centre for Social Impact, a network of research centres across four Australian universities
 * Centre for Social Investigation, an interdisciplinary research group in Oxford, England
 * City Supermarket, Inc., a grocery chain based in Pangasinan, Philippines
 * Coimisiún Sábháilteachta Iarnróid, the Railway Safety Commission of Ireland
 * Computer Security Institute, a former professional association in the United States
 * Computer Society of India, a professional association
 * Computers and Structures, Inc., a structural engineering software company
 * Construction Specifications Institute, a technical society in the United States
 * Crime Stoppers International

Paranormal

 * Civilian Saucer Intelligence, an unidentified flying object research group
 * Committee for Skeptical Inquiry, an organization for skeptical paranormal investigation

Places

 * Cité des Sciences et de l'Industrie in Paris

Post-nominals

 * Companion of the Order of the Star of India, a class of the order of chivalry founded by Queen Victoria
 * Cross of Solomon Islands, a class of the Order of the Solomon Islands

Religion

 * Christian Schools International
 * Christian Solidarity International
 * Church of Scientology International
 * Church of South India

Schools and educational institutions

 * Canadian Securities Institute, a financial education company providing professional credentials and compliance courses
 * Cité Scolaire Internationale de Grenoble, an international school in Grenoble, France
 * Cité Scolaire Internationale de Lyon, an international school in Lyon, France
 * College of Southern Idaho, a community college in the United States
 * College of Staten Island, part of The City University of New York in the United States

Sport

 * Commission Sportive Internationale, a governing body for motor racing
 * Concours de Saut International, a ranking system for show jumping
 * CueSports International, a pool (pocket billiards) event promotion company and league organizer, affiliated with the Billiard Congress of America

Technology

 * Camera Serial Interface, an MIPI Alliance protocol for cameras and mobile devices
 * Channel state information, a wireless communication term
 * Coherence scanning interferometry, an areal surface topography technique related to 3D interference microscopy
 * Common System Interface, a former name of the Intel QuickPath Interconnect, a computer bus
 * Control Sequence Introducer, a control character for initiating escape sequences
 * Crystalline silicon (c-Si), used in solar cell technology
 * Conditional symmetric instability, a form of convective instability in a fluid

Other uses

 * California Solar Initiative, a renewable energy program
 * Chlorosulfonyl isocyanate
 * Complex specified information, an argument for intelligent design
 * Container Security Initiative, a program of the U.S. Bureau of Customs and Border Protection
 * CSI 300 Index, a stock market index compiled by the China Securities Index Company
 * Customer satisfaction index, a metric that reflects the overall customer satisfaction with a company in terms of product quality, customer service, price, etc.