| Acronym | Definition |
|---|
| THC | Tetrahydrocannabinol (psychoactive compound in marijuana) |
| THC | Texas Historical Commission (aka Texas SHPO) |
| THC | The History Channel |
| THC | Terminal Handling Charge |
| THC | Thermohaline Circulation |
| THC | Total Hydrocarbon |
| THC | Texas Hill Country |
| THC | Thomas Haden Church (actor) |
| THC | Trillium Health Centre (West Mississauga, Ontario, Canada) |
| THC | Tenet Health Care |
| THC | The Harvard Crimson (college newspaper) |
| THC | The Hangover Cure (Apollo Nutrition LLC) |
| THC | The Hope Conspiracy (band) |
| THC | The Hackers Choice |
| THC | Tennessee Historical Commission |
| THC | Temperature and Humidity Control |
| THC | Texas Hardcore (music website) |
| THC | Translational Hand Controller |
| THC | Total Health Center (Marlboro college) |
| THC | Texas Hemp Campaign |
| THC | Two Hand Control |
| THC | The High Children (band) |
| THC | Thrashing Hectic Circle (San Francisco area punk band) |
| THC | The Happy Chemical (THC in marijuana) |
| THC | Testing for Higher Credentials (movie "How High") |
| THC | Tetrahydrachloride (industrial solovent) |
| THC | Tattoo Healing Cream |
| THC | Team Hyper Combo (gaming) |
| THC | Toxic Hazard Corridor |
| THC | The Hunting Club (gaming clan) |
| ThC | The Humble Crew (gaming clan) |
| THC | Tree House Consulting (California) |
| THC | Target Heading Change |
| THC | Turnagainhardcore (website) |
| THC | Target Homing Correlator |
| THC | Technical Head Count |
| THC | The Hippy Clan (gaming) |
| THC | Thunder Hill Crew |
| THC | Trace Heating Control |
| THC | Tsinghua Class of Changsha First Middle School, Hunan, PR China |
| THC | The History Carper (website) |
| THC | Telecommunications Host Controller |
| THC | The Headline Company (Guelph, ON, Canada) |
| THC | the Hammers Company, Inc. |
| THC | The Hope Center (est. 1998) |
| THC | Tenderloin Housing Clinic (California) |
| THC | The Human Condition (band) |
| THC | Texas Hippie Coalition (band) |
| THC | The High Council (gaming) |
| THC | Trades Hall Council (Victoria, Australia) |
| THC | Traditional Health Care |