| H&D | Hardware and Devices 
| Others |
| H&D | Hurter and Driffield
| Others |
| HD | A Half Degree
| Others |
| HD | A Mustard Agent
| Others |
| HD | distilled mustard
| Others |
| HD | Haagen Dazs
| Others |
| HD | Hadoop Distributed
| Others |
| HD | Hahnemannian Decimal
| Others |
| HD | Half Done
| Others |
| HD | Half Duplex
| Others |
| HD | Hall Director
| Others |
| HD | Halte Durch
| Others |
| HD | Hammer Down
| Others |
| HD | Hammered Dulcimer
| Others |
| HD | Hampster Dance
| Others |
| HD | Hand Drawn
| Others |
| HD | Hans Dieter
| Others |
| HD | Hapori Dume, comic strip character
| Others |
| HD | Happy Day
| Others |
| HD | Hard Disk
| Others |
| HD | Hard Drive
| Others |
| HD | Hardly Dangerous
| Others |
| HD | Hardly Davidson
| Others |
| HD | Hardware Design
| Others |
| HD | Harley Davidson
| Others |
| HD | Harmonic Distortion
| Others |
| HD | Harmonised Document
| Others |
| HD | Harmonized Document
| Others |
| HD | Hausdorff Dimension
| Others |
| HD | Have Done
| Others |
| HD | Hay Day
| Others |
| HD | Head Delegate
| Others |
| HD | Head Down
| Others |
| Hd | Head, Headland
| Others |
| HD | Health Department
| Others |
| HD | Healthcare and Diagnostics
| Others |
| HD | Healthcare Diagnostics
| Others |
| HD | Healthy Diet
| Others |
| HD | Hearing Distance
| Others |
| HD | Heart disease
| Others |
| HD | Heavy Density
| Others |
| HD | Heavy Duty
| Others |
| HD | Heavy-Duty
| Others |
| HD | heavyduty
| Others |
| HD | Heidelberg, Germany
| Others |
| HD | Help Desk
| Others |
| HD | Hemodialysis
| Others |
| HD | Henry Designs
| Others |
| HD | Henry Draper
| Others |
| HD | Henry Duncan
| Others |
| HD | Hewlett Packard
| Others |
| HD | Hexagonal Diamond
| Others |
| HD | Hi Dan
| Others |
| HD | Hi Def
| Others |
| HD | Hiatus Dudes
| Others |
| HD | Hidden Dynamics
| Others |
| HD | High Defenition
| Others |
| HD | High Definition
| Others |
| HD | High Demand
| Others |
| HD | High Density
| Others |
| HD | High Desert
| Others |
| HD | High Detergent
| Others |
| HD | High Disgusting
| Others |
| HD | High Distance
| Others |
| HD | High Distinction
| Others |
| HD | High Dollar
| Others |
| HD | High Dose
| Others |
| HD | High Drag
| Others |
| HD | High Dudgeon
| Others |
| HD | High Durability
| Others |
| HD | High-Definition
| Others |
| HD | Higher Dominion
| Others |
| HD | Highest Divisor
| Others |
| HD | Highly Desirable
| Others |
| HD | Highly Desired
| Others |
| HD | Highly Disappointed
| Others |
| HD | Hilary Doda
| Others |
| HD | Hilary Duff
| Others |
| HD | Hip Disarticulation
| Others |
| HD | Hip Displasia
| Others |
| HD | Hip Dysplasia
| Others |
| HD | Hirschsprung disease
| Others |
| HD | Hodgkin's Disease (lymphoma)
| Others |
| HD | HoldDown
| Others |
| HD | Holo Deck
| Others |
| HD | Holy Drumstick
| Others |
| HD | Home Defense
| Others |
| HD | Home Depot
| Others |
| HD | Homeland Defense
| Others |
| HD | Homeless Dog
| Others |
| HD | Honorable Discharge
| Others |
| HD | Hopelessly Deaf
| Others |
| HD | Horizontal Drain
| Others |
| HD | Horrible and Detrimental
| Others |
| HD | Horse Dander
| Others |
| HD | Horse Dung
| Others |
| HD | Hortonworks Data
| Others |
| HD | Hospital Day
| Others |
| HD | Host Directory
| Others |
| HD | Hot Damn
| Others |
| HD | Hot Deal
| Others |
| HD | Hot Dog
| Others |
| HD | House District
| Others |
| HD | House Doctor
| Others |
| HD | House of Delegates
| Others |
| HD | Huge Dongs
| Others |
| HD | Hull Defilade
| Others |
| HD | Hundred Dollars
| Others |
| HD | Hundreds of Dollars
| Others |
| HD | Huntington's Disease
| Others |
| HD | Hurter Driffield
| Others |
| HD | Hybrid Digital
| Others |
| HD | Hydrogen Drain
| Others |
| HD | Hyperactive Disorder
| Others |
| HD | Hypersexual Disorder
| Others |
| hd. | hochdeutsch
| Others |