| Acronym | Definition |
|---|
| THS | Temple of the Holy Spirit (various locations) |
| THS | Thousand |
| THS | Texas Homeland Security (Austin, TX) |
| THS | Theatre and Speech (various organizations) |
| THS | Timberline High School (various locations) |
| THS | Tennessee Historical Society (est. 1849) |
| THS | Toronto Humane Society (Canada) |
| THS | Traitement Hormonal Substitutif (French: Hormone Replacement Therapy) |
| THS | Terrebonne High School (Louisiana) |
| THS | Tartan High School (Oakdale, MN) |
| THS | Theodor-Heuss-Schule (Germany) |
| THS | Turramurra High School (Australia) |
| THS | The Home Secretary (UK) |
| THS | Temporary Housing Solutions (San Antonio, TX) |
| THS | Thesaurus (File Name Extension) |
| THS | Trinity High School (Morgantown, West Virginia) |
| THS | Trenton Historical Society (Trenton, NJ) |
| THS | Talipapa High School (Philippines) |
| THS | Tribal Head Start (various locations) |
| THS | Technology Honor Society |
| THS | Terapia Hormonal Sustitutiva (Spanish: Hormone Replacement Therapy) |
| THS | Tacoma Historical Society (Tacoma, WA) |
| THS | Thoroughbred Horse Society (Canada) |
| THS | Temporary Help Supply (labor sector) |
| THS | True Hollywood Story (docudrama TV series) |
| THS | Trojan Horse Security (Washington, DC) |
| THS | Tuomey Healthcare System (South Carolina) |
| THS | Toyota Hybrid System |
| THS | Temporary Help Services |
| THS | Thesaurus File |
| THS | Toyota Hybrid System (Toyota gasoline/electric engine; now Hybrid Synergy Drive) |
| THS | Troy High School (Michigan; California) |
| THS | The Heavy Stuff |
| THS | The Harbour School (Annapolis, MD) |
| THS | The Harbour School (various locations) |
| THS | Trade in Health Services |
| THS | Titanic Historical Society, Inc. |
| THS | The Health Store (various locations) |
| THS | Tehachapi High School (California) |
| THS | The Hold Steady (band) |
| THS | The Hush Sound (band) |
| THS | Terre Haute South (Indiana) |
| THS | Tekniska Högskolans Studentkår (Swedish: Student Technical School) |
| THS | Titusville High School (Florida) |
| THS | Tecumseh High School (Oklahoma) |
| THS | Taft High School (Woodland Hills, California) |
| THS | Thornton Historical Society (Thornton, NH) |
| THS | Torrance High School |
| THS | Truman High School (Levittown, Pennsylvania) |
| THS | Tigard High School |
| THS | Tucson High School (Tucson, Arizona) |
| THS | Tustin High School (Tustin, California) |
| THS | Trimmable Horizontal Stabilizer (aviation) |
| THS | Teaneck High School |
| THS | Tempe High School (Tempe, AZ) |
| THS | Tottenville High School (New York) |
| THS | Tracy High School (Tracy, California) |
| THS | Theatrical Screener |
| THS | Tuscola High School (Illinois and North Carolina) |
| THS | Thornton High School (Colorado) |
| THS | Territory Health Services |
| THS | Timberland High School (various locations) |
| THS | Twinsburg High School (Ohio) |
| THS | Terryville High School (Connecticut) |
| THS | Tabb High School |
| THS | Thunderbird High School |
| THS | Tate High School (Gonzalez, Florida) |
| THS | Taconic High School (Pittsfield, MA) |
| THS | Templeton High School |
| THS | Toledo High School (various locations) |
| THS | The Hockey Show |
| THS | The Hated Society (gaming) |
| THS | The Happy Sack Ltd (UK) |
| THS | Thomaston High School (Connecticut) |
| THS | Toyota Home Service (Indonesia) |
| THS | Time-Hopping Sequence (computer science) |
| THS | Tyee High School (Washington) |
| THS | Trezevant High School (Memphis, TN) |
| THS | Tarrant High School (Alabama) |
| THS | Tanbridge House School (High School, West Sussex, United Kingdom) |
| THS | Talking Hump Syndrome (Futurama) |
| THS | Ticonderoga High School (New York) |
| THS | Trona High School (Trona, CA) |
| THS | Two-Handed Swordsman (Canadian Clan) |
| THS | Target Handoff System |
| THS | Tubing Head Spool (oil drilling) |
| THS | Techmar Helical System |
| THS | Tactical Hybrid Switch |
| THS | Tiny Heart Syndrome |
| THS | Tempview High School (Utah) |
| THS | Timpanogas High School (Utah) |
| THS | Three Heat Switch |
| THS | Townson High School |
| THS | Terminal Handling Supplier (USPS) |
| THS | Technical Healthcare Solutions |
| THS | Tylney Hall School |
| THS | Transparent Hair Syndrome (anime) |