| HST | Half Square Triangle 
| Others |
| HST | Half Square Triangles
| Others |
| HST | Half-Square Triangle
| Others |
| HST | Handmade Software Graphics histogram (HSI raw file)
| Others |
| HST | HANDY Standard Time
| Others |
| HST | Happy Smiley Trains
| Others |
| HST | Harlem Style Training
| Others |
| HST | Harmonised Sales Tax
| Others |
| HST | Harmonized Sales Tax
| Others |
| HST | Harmonized Sales Tax (Canada)
| Others |
| HST | Harry S Truman
| Others |
| HST | Harry S. Truman Scholarship Foundation
| Others |
| HST | Harvard Step Test
| Others |
| HST | Hastane
| Others |
| HST | Hawaii Standard Time
| Others |
| HST | Hawaiian Standard Time
| Others |
| HST | Hawaiian Standard Time [UTC - 1000]
| Others |
| HST | Health Sciences and Technology
| Others |
| HST | Health System Technologies
| Others |
| HST | Health Systems Trust
| Others |
| HST | Healthcare Science and Technology
| Others |
| HST | Helicopter Support Team
| Others |
| HST | Help Support Technician
| Others |
| HST | hereditary stomatocytosis
| Others |
| HST | Herschel Science Team
| Others |
| HST | Hi Shok Two
| Others |
| HST | Hidden Sales Taxes
| Others |
| HST | High School Test
| Others |
| HST | High Shock Two
| Others |
| HST | High Specification Touring
| Others |
| HST | High Speed Taping
| Others |
| HST | High Speed Taxiway
| Others |
| HST | High Speed Technology
| Others |
| HST | High Speed Tester
| Others |
| HST | High Speed Track
| Others |
| HST | High Speed Train
| Others |
| HST | High Speed Transfer
| Others |
| HST | High Speed Travel
| Others |
| HST | High Speed Tunnel
| Others |
| HST | High-Speed Technology
| Others |
| HST | Higher Surgical Trainee
| Others |
| HST | Higher Surgical Training
| Others |
| HST | Hippo Site Toolkit
| Others |
| HST | History Host
| Others |
| HST | Hostile Sub Terranean
| Others |
| HST | Hosting
| Others |
| HST | Hot Spot Tracker
| Others |
| HST | Hubble Space Telescope
| Others |
| HST | Human Serum Transferase
| Others |
| HST | Hunter S Thompson
| Others |
| HST | Hunter S. Thompson
| Others |
| HST | Hybrid Scrimmage Team
| Others |
| HST | Hydra Shok Two
| Others |
| HST | Hydrostatic Transmission
| Others |
| HST | hydroxysteroid sulphotransferase
| Others |
| HST | HyperSonic Transport
| Others |
| HST | Hypertrophy Specific Training
| Others |