| Acronym | Definition |
|---|
| ISCA➣International Symposium on Computer Architecture |
| ISCA➣International Speedway Corporation (stock symbol) |
| ISCA➣International Speech Communication Association |
| ISCA➣Infrastructure Sustainability Council of Australia |
| ISCA➣Interrupt Status Control a |
| ISCA➣International Society for Computers and Their Applications |
| ISCA➣International Sport and Culture Association (Copenhagen, Denmark) |
| ISCA➣Information Systems and Computer Applications (various organizations) |
| ISCA➣Institute of Social and Cultural Anthropology (Oxford University; UK) |
| ISCA➣Indian Science Congress Association |
| ISCA➣Independent Schools Council of Australia |
| ISCA➣Instituto Superior de Ciências Aplicadas (Brazil) |
| ISCA➣Islamic Supreme Council of America |
| ISCA➣International Show Car Association |
| ISCA➣Irish Setter Club of America |
| ISCA➣Iowa Student Computer Association |
| ISCA➣International Sports Conditioning Association |
| ISCA➣International Save the Children Alliance |
| ISCA➣International Sea Cadet Association (Ottawa, Ontario, Canada) |
| ISCA➣International Scouting Collectors Association (Las Vegas, NV) |
| ISCA➣International Shrine Clown Association |
| ISCA➣Indiana School Counselor Association |
| ISCA➣Independent Safety Consultants Association (UK) |
| ISCA➣International Society of Caricature Artists (est. 1989) |
| ISCA➣Interior Systems Contractors Association (Ontario, Canada) |
| ISCA➣Indiana State Chiropractic Association |
| ISCA➣Illinois Soil Classifiers Association |
| ISCA➣International Snow Camping Association |
| ISCA➣Interlake Sailing Class Association |
| ISCA➣Idaho School Counselor Association |
| ISCA➣Iranian Students Cultural Association |
| ISCA➣Illinois School Counselor Association |
| ISCA➣Idle Speed Control Actuator |
| ISCA➣Indoor Soccer Coaches Association |
| ISCA➣Indiana State Chess Association |
| ISCA➣International Student Christian Association (Fayetteville, AR) |
| ISCA➣International Scholarly Communication Alliance |
| ISCA➣International Shark Class Association |
| ISCA➣Information Systems Consultants Association (Atlanta, GA) |
| ISCA➣Iowa School Counselors Association |
| ISCA➣Integrated Support Command Alameda (US Coast Guard) |
| ISCA➣Information Society Creativity Award |
| ISCA➣Image and Sensory ComputAtion (group) |
| ISCA➣International Sailing Coaches Association |
| ISCA➣India Science Congress Association |
| ISCA➣Illinois Security Chiefs Association |
| ISCA➣Initial Security Classification Assessment |
| ISCA➣Iowa Student Computing Alumni |
| ISCA➣International Safe Container Act of 1977 (US) |
| ISCA➣International Salon of Contemporary Artists |
| ISCA➣Intelligent Synchronous Communications Adapter |
| ISCA➣International Sunfish Class Association, Inc. |
| ISCA➣Indiana Sprint Car Association |
| ISCA➣International Sport Chanbara Association |
| ISCA➣Internet Sword Collectors Association |
| ISCA➣Independent Schools' Counsellors' Association (Australia) |
| ISCA➣Isabela State College of Agriculture (Philippines) |
| ISCA➣Indiana Soccer Coaches Association, Inc. |
| ISCA➣ISDN Selective Call Acceptance |
| ISCA➣International Society of Copier Artists, Ltd |
| ISCA➣International Suicide Checkers Association |
| ISCA➣Institut Supérieur Commercial et Administratif |
| ISCA➣Integrated Systems Control Architecture |
| ISCA➣Insulin Secretion Climax |
| ISCA➣Indiana Sporting Clays Association, Inc. |
| ISCA➣Indiana State Court Administration |
| ISCA➣Independent Schools Classical Association (UK) |
| ISCA➣International Senior Citizens Association, Inc. (est. 1963) |