| STAC | Salmon And Trout Advisory Committee 
| Others |
| STAC | Sanford Third Age Club
| Others |
| STAC | Saskatchewan Triathlon Association Corporation
| Others |
| STAC | Science and Technology Advisory Council
| Others |
| STAC | Science Technology And Culture
| Others |
| STAC | Scientific and Technical Advice Cell
| Others |
| STAC | Scientific And Technical Advisory Committee
| Others |
| STAC | Scientific And Technological Activities Commission
| Others |
| STAC | Scottish Technology And Collaboration
| Others |
| STAC | Second Tier Advisory Committee
| Others |
| STAC | Sectional Tournament At Club
| Others |
| STAC | Sectional Tournament At Clubs
| Others |
| STAC | Sectional Tournaments at Clubs
| Others |
| STAC | Send To A Colleague
| Others |
| STAC | Shanghai Tractor Automobile Corporation
| Others |
| STAC | Shuttle Task Activation Contractor
| Others |
| STAC | Sindicat del Taxi de Catalunya
| Others |
| STAC | Single Track Around Canberra
| Others |
| STAC | Sionscience And Technology Advisory Committee
| Others |
| STAC | Skills, Talents, Abilities, and Characteristics
| Others |
| STAC | Software Testing Atlanta Conference
| Others |
| STAC | Southern Tier Athletic Conference
| Others |
| STAC | Space Time Analysis for Cybersecurity
| Others |
| STAC | St Thomas Aquinas College
| Others |
| STAC | St Thomas The Apostle College
| Others |
| STAC | St. Thomas Adventure Club
| Others |
| STAC | Stacspecial Transportation Advisory Committee
| Others |
| STAC | Stacstate Technologies Advancement Collaborative
| Others |
| STAC | Stafford Township Arts Center
| Others |
| STAC | Standard Traffic Agents Code
| Others |
| STAC | Standards Based Encryption Compression
| Others |
| STAC | Star Trek Alpha Command
| Others |
| STAC | State Technologies Advancement Collaborative
| Others |
| STAC | State Training Advisory Council
| Others |
| STAC | Statewide Transportation Advisory Committee
| Others |
| STAC | Statistical Temporal Analysis of Crime
| Others |
| STAC | Stearyl Trimethyl Ammonium Chloride
| Others |
| STAC | Steelworker Toronto Area Council
| Others |
| STAC | Structured Activity Compensation
| Others |
| STAC | Student Teacher Activity Committee
| Others |
| STAC | Student Technology Assistance Center
| Others |
| STAC | Student Theatre Arts Complex
| Others |
| STAC | Student Trial Advocacy Competition
| Others |
| STAC | Students Taking Action for Change
| Others |
| STAC | Students Thinking Across the Curriculum
| Others |
| STAC | Submerged Tactical Assault Craft
| Others |
| STAC | System to Track and Account for Children
| Others |