| Acronym | Definition |
|---|
| HCT | Higher Colleges of Technology (United Arab Emirates) |
| HCT | Hydrochlorothiazide |
| HCT | Hematopoietic Cell Transplantation |
| HCT | Hematocrit |
| HCT | Hale Centre Theatre (West Valley City, UT) |
| HCT | Honda Civic Tour (concert series) |
| HCT | High Speed Cmos with Ttl |
| HCT | High Speed Cmos Technology |
| HCT | Hardware Compatibility Test |
| HCT | Headend Configuration Tool |
| HCT | Home Communications Terminal |
| HCT | High Resolution Compression Technology |
| HCT | Health Care Team (medical group) |
| HCT | Hazard Control Technologies (Fayetteville, GA) |
| HCT | HIV Counseling and Testing (various locations) |
| HCT | Hardware Compatibility Tests |
| HCT | Hamburger Computertage (Messe) |
| HCT | Human Capital Technology (computing) |
| HCT | Hamamatsu Cable Television (Shizuoka, Japan) |
| HCT | Home Comfort Team (Syncro Weld, Inc.) |
| HCT | Mercury Cadmium Telluride (HgCdTe) |
| HCT | Hollow Clay Tile |
| HCT | Helicopter Combat Support Training Squadron (US Navy aviation unit designation used from 1974 to 1977) |
| HCT | Hall Current Thruster |
| HCT | High-Capacity Transport (Nortel) |
| HCT | Hawker Control Team (Hong Kong) |
| HCT | Helical Computerized Tomography (scanning) |
| HCT | Hyundai Calibration & Certification Technologies Co Ltd (South Korea) |
| HCT | High Clutter Tracker (radar) |
| HCT | Hydraulic Component Tester |
| HCT | Hub City Transit |
| HCT | Height Change Threshold |
| HCT | High-Speed CMOS with TTL output (aka HCMOS) |
| HCT | Hartford City Taxi (Hartford, WI) |
| HCT | Human Intelligence Collection Team (US DoD) |