| H/B-Verhältnis | Höhe-/Breite-Verhältnis des Reifen |
| HAL | hardware Abstraction Layer |
| HCCI | Homogeneous Charge Compression Ignition |
| HCS | High Compression and Squish |
| HD-Öl | Heavy -Duty Oil |
| HD-Stufe | Hochdruck-Stufe |
| HDC | Hill-Decent-Control |
| HDD | Hard Disk Drive |
| HDEV | Hochdruck-Einspritzventil |
| HDG | Hell-Dunkel-Grenze |
| HDP | Hochdruckpumpe |
| HDT | Heavy Duty Truck |
| HDU | Hybrid Drive Unit |
| HEV | Hybrid Vehicle |
| HF | Hochfrequenz |
| HFC | Hydraulic Fading Compensation |
| HFM | Heißfilm-Luftmassenmesser |
| HFO | Heavy Fuel Oil |
| HHC | Hill-Hold Control |
| HIC | Head Injury Criterion |
| HIE | Helmholz Integral Equation |
| HIL | Hardware In the Loop |
| HKZ | Hochspannungs-Kondensatorzündung |
| HLA | Hydraulic Lash Adjuster |
| HNS | Homogeneous Numerically |
| hp | horsepower |
| HPDI | High Pressure Direct Injection |
| HRB | Hydraulic Rear Wheel Boost |
| HSCSD | High Speed Cicuit Switched Data |
| HSD | Hybrid-Synergie Drive |
| HSLA | High Strength Low Alloy |
| HTC | Heat Transfer Coefficient |
| HTML | HyperText Markup Language |
| HTTP | Hyper Text Transfer Protocol |
| HUD | Head-up Display |
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