| H&S | Haemorrhage and Shock 
| Others |
| H&S | Hardware and Software
| Others |
| H&S | Headquarters and Service
| Others |
| H&S | Help and Support
| Others |
| h.s | hour sleep or half-strength
| Others |
| h.s. | Hora Somni (at bedtime)
| Others |
| H/S | Heat Shield
| Others |
| HS | Habitual Snoring
| Others |
| HS | Haiti Surf
| Others |
| HS | Half Squat
| Others |
| HS | Half Step
| Others |
| HS | Half Strength
| Others |
| HS | Haloxylon Salicornicum
| Others |
| HS | Hamilton Standard
| Others |
| HS | Hand Switch
| Others |
| HS | Handling Speciale
| Others |
| HS | Handling Statement
| Others |
| HS | Hang Snatch
| Others |
| HS | Hard Scattering
| Others |
| HS | Hard Slot
| Others |
| HS | Hard Sphere
| Others |
| HS | Hard spheres
| Others |
| HS | Hard Strong
| Others |
| HS | Hard Surface
| Others |
| HS | Hardcore Sociopath
| Others |
| HS | Hardy Special
| Others |
| HS | Harmonic Synthesizer
| Others |
| HS | Harmonized System
| Others |
| HS | Harry styles
| Others |
| HS | Haruka Sanada
| Others |
| HS | Hassium
| Element |
| HS | Have Searched
| Others |
| HS | Head and Sectors
| Others |
| HS | Head SAM
| Others |
| HS | Head Set
| Others |
| HS | Head Shotz
| Others |
| HS | Head Start
| Others |
| HS | Heading Section
| Others |
| HS | Health Safety
| Others |
| HS | Health Status
| Others |
| HS | Healthy Scratch
| Others |
| HS | Heart Sounds
| Others |
| HS | Heart Stimulant
| Others |
| HS | Heat Shock
| Others |
| HS | Heat Sink
| Others |
| HS | Heavy Stuff
| Others |
| HS | Heinrich stadial
| Others |
| HS | Helicopter Antisubmarine (Navy)
| Others |
| HS | Hell Satan
| Others |
| HS | Hellenic Squadron
| Others |
| HS | Henry Stephens
| Others |
| HS | Herding Started
| Others |
| HS | Hereditary Spherocytosis
| Others |
| HS | Heterogeneous Services
| Others |
| HS | Hidden Sniper
| Others |
| HS | Hidden States
| Others |
| HS | Hidradenitis Suppurativa
| Others |
| HS | High Sampling
| Others |
| HS | High Scan
| Others |
| HS | High School
| Others |
| HS | High Schools
| Others |
| HS | High Seas
| Others |
| HS | High Sensitivity
| Others |
| HS | High Specification
| Others |
| HS | High Sport
| Others |
| HS | High Standard
| Others |
| HS | High Standards
| Others |
| HS | High Strength
| Others |
| HS | High Structure
| Others |
| HS | Highest Scoring
| Others |
| HS | Highly Sensitive
| Others |
| HS | Highly Suggested
| Others |
| HS | Hilbert Schmidt
| Others |
| HS | Hip Society
| Others |
| HS | Hispanic Studies
| Others |
| HS | Histochemical Society
| Others |
| HS | Hodge Structure
| Others |
| HS | Hollands Spoor railway station
| Others |
| HS | Holy Shiite
| Others |
| HS | Holy Spirit
| Others |
| HS | Home Safe
| Others |
| HS | Home School
| Others |
| HS | Home Schooled
| Others |
| HS | Home Search
| Others |
| HS | Home Sick
| Others |
| HS | Home Site
| Others |
| HS | Home Station
| Others |
| HS | Homeostatic state
| Others |
| HS | Homing Signal
| Others |
| HS | Homo Sapiens
| Others |
| HS | Hor Somne
| Others |
| HS | Hora Somni
| Others |
| HS | Horizon Sensor
| Others |
| HS | Horizontal Sector
| Others |
| HS | Horizontal Space
| Others |
| HS | Horizontal Stabilizer
| Others |
| HS | Horizontal System
| Others |
| HS | Horribly Slow
| Others |
| HS | Hors Service
| Others |
| HS | Horse Saliva
| Others |
| HS | Horse Secretions
| Others |
| HS | Horseshoe Symbol
| Others |
| HS | Hot Shots
| Others |
| HS | Hot Spot
| Others |
| HS | Hot Stuff
| Others |
| HS | Hot Swap
| Others |
| HS | Hour of Sleep
| Others |
| HS | Hours of Sleep
| Others |
| HS | Housatonic Southern (H and S Railroad)
| Others |
| HS | House Show
| Others |
| HS | House Specialty
| Others |
| HS | HS Short
| Others |
| HS | HS Sportarms
| Others |
| HS | Hulk Smash
| Others |
| HS | Human Sequence
| Others |
| HS | Human Services
| Others |
| HS | Human Shield
| Others |
| HS | Human Singular
| Others |
| HS | Human Specific
| Others |
| HS | Hume Society
| Others |
| HS | Hunsucker Spring
| Others |
| HS | Hunter Shaman
| Others |
| HS | Hybrid Seeds
| Others |
| HS | Hydrographic Society
| Others |
| HS | Hyper Shadow
| Others |
| HS | Hyper Spectral
| Others |
| HS | Hyper Speed
| Others |
| HS | Hyper Storage
| Others |
| HS | Hyperimmune Sera
| Others |
| HS | Hypertension Section
| Others |
| HS | Literate Haskell source code file
| Others |