| Acronym | Definition |
|---|
| SCA | Society for Creative Anachronism, Inc. |
| SCA | Single-Connector Attachment (SCSI) |
| SCA | Supply Chain Alliance |
| SCA | Service Component Architecture |
| SCA | Sudden Cardiac Arrest |
| SCA | Student Conservation Association |
| SCA | Svenska Cellulosa Aktiebolaget |
| SCA | Service Contract Act |
| SCA | Spinocerebellar Ataxia |
| SCA | Small Craft Advisory |
| SCA | Software Communications Architecture |
| SCA | Sickle Cell Anemia |
| SCA | Society of Cardiovascular Anesthesiologists |
| SCA | Supreme Council of Antiquities (Egypt) |
| SCA | Smart Card Alliance |
| SCA | Sydney Catchment Authority (Australia) |
| SCA | Sony Corporation of America |
| SCA | Shuttle Carrier Aircraft (Space) |
| SCA | Scottish Canoe Association (Edinburgh, Scotland) |
| SCA | Societe en Commandite par Actions |
| SCA | Shipbuilders Council of America |
| SCA | Sexual Compulsives Anonymous |
| SCA | Swedish Committee for Afghanistan |
| SCA | Society for California Archaeology |
| SCA | Student Council Association |
| SCA | Specific Combining Ability |
| SCA | Slag Cement Association |
| SCA | Society for Commercial Archeology |
| SCA | Sustainable Competitive Advantage |
| SCA | Side-Channel Analysis (cryptography) |
| SCA | Snow-Covered Area |
| SCA | Suez Canal Authority |
| SCA | Single Channel Analyzer |
| SCA | Samoyed Club of America |
| SCA | Secular Coalition for America (Washington, DC) |
| SCA | Scientific Computing Associates |
| SCA | Special Committee on Agriculture (EU) |
| SCA | Supplementary Credit Approval (UK) |
| SCA | Sneak Circuit Analysis |
| SCA | Superior Cerebellar Artery |
| SCA | Society of Core Analysts |
| SCA | Secure Content Accelerator (Cisco) |
| SCA | Selective Call Acceptance |
| SCA | Standing Committee on Agriculture |
| SCA | Subcontract Administrator |
| SCA | Specialty Coffee Association |
| SCA | Special Central Assistance (India) |
| SCA | Scottsdale Christian Academy (Scottsdale, Arizona, USA) |
| SCA | South Central Asia |
| SCA | Supply Chain Analyst |
| SCA | Sprayed Concrete Association (UK) |
| SCA | South Carolina Aquarium (Charleston, SC) |
| SCA | Service Center Agencies (USDA) |
| SCA | Subcontract Award |
| SCA | Societate in Còmandita pe Actiuni (Romanian: limited joint stock companies) |
| SCA | Summit Christian Academy (Yorktown, VA; incorporated in 1995) |
| SCA | Surface Charge Analyzer |
| SCA | System Communication Architecture |
| SCA | Sister Cities Association |
| SCA | Sensor Chip Assembly |
| SCA | Subsidiary Communications Authority (FCC) |
| SCA | Specific Collection Area |
| SCA | Senescent Cell Antigen |
| SCA | Singapore Changi Airport (Singapore) |
| SCA | Sickle Cell Association |
| SCA | Single Connector Architecture |
| SCA | Synchronous Clock Adjustment |
| SCA | Scottish Croquet Association |
| SCA | Satellite Control Authority |
| SCA | School Clothing Allowance (West Virginia) |
| SCA | Space Coordinating Authority (Joint Force Military Operations) |
| SCA | Security Control Agreement |
| SCA | Short-Circuit Analysis |
| SCA | Single Call Arrangement |
| SCA | Specific Collecting Area (electrostatic precipitators; air pollution control) |
| SCA | Structural Coverage Analysis (DO-178B Certification) |
| SCA | Sea Cadet Association |
| SCA | Seattle Counselors Association (Seattle, WA) |
| SCA | Solar Collector Assembly |
| SCA | Self-Contained Approach |
| SCA | Shop Certification Authority (aviation) |
| SCA | Shalom Christian Academy |
| SCA | Society for Creative Acronyms |
| SCA | Service Cost Avoidance |
| SCA | Senior Competition Advocate (acquisition procedures) |
| SCA | Single Case Agreement (insurance) |
| SCA | Service Cryptologic Agency |
| SCA | Société Canadienne d'Agronomie (Canadian Society of Agronomy) |
| SCA | Swedish Concrete Association |
| SCA | Ship Cost Adjustment |
| SCA | Self-Controlled Airspace |
| SCA | Southern Cemetery Association |
| SCA | Singapore Club Aquanaut |
| SCA | Self-Complementary Antenna |
| SCA | Saint Cecilia Academy (Pasig City, Metro Manila, Philippines) |
| SCA | Show Cause Authority |
| SCA | Software Corporation of America, Inc. |
| SCA | Société du Crédit Agricole du Canada (farm credit corporation) |
| SCA | Spacecraft Checkout Area (NASA) |
| SCA | Square Contour Algorithm |
| SCA | Stock Control Activity |
| SCA | Scheduling Committee Action (USAF Academy) |
| SCA | Scottish Conjurers' Association (Glasgow, Scotland) |
| SCA | Single Cabinet ASOS (National Weather Service) |
| SCA | Special Customer Arrangement/Agreement |
| SCA | Status of Children Act |
| SCA | Shipping Control Authority |
| SCA | System Concept Analysis |
| SCA | State Cooperative Agreement |
| SCA | Software Configuration Audit |
| SCA | Scientific Computer Applications, Inc (Tulsa, Oklahoma) |
| SCA | Summary Cost Account |
| SCA | Switchgear and Controlgear Assembly |
| SCA | Social Compliance Auditor |
| SCA | Space Camp Andøya (Norway) |
| SCA | Soliton Cellular Automata |
| SCA | Software Configuration Architecture |
| SCA | Shanghai Copyright Administration |
| SCA | Suffolk County Area |
| SCA | Site Characterization Analysis |
| SCA | Sub-Channel Assignment |
| SCA | Southern Communications Area |
| SCA | Service Creation Agent |
| SCA | Saint Charles Associates (St. Charles, Maryland) |
| SCA | Self-Cohering Array |
| SCA | Site Concurrence Agreement |
| SCA | Specification Compliance Agreement |
| SCA | Subordinate Command Activity |
| SCA | Systems Constant Area |
| SCA | Systems Configuration Administrator |
| SCA | Silver Channel Administration |
| SCA | Special Caution Area |