| Abbreviation | Definition |
|---|---|
| HIPP | Hifn Intelligent Packet Processing |
| HIPPI | High Performance Parallel Interface |
| HIPSR | HIgh-Performance Switching and Routing |
| HIR | Higher In Rank |
| HIS | Home Internet Solution |
| HITS | Headend-In-The-Sky |
| HJSPR | High Performance Switching and Routing |
| HLA | High Level Architecture |
| HLAN | Helical Local Area Network |
| HLAPI | High- Level Application Programming Interface |
| HLC | High Level Client |
| HLCI | High Level Client Indicator |
| HLN | High Level Network |
| HLS | High Line Speed |
| HMA | Hide My Ass |
| HMAC | Hashed Message Authentication Code |
| HMS | Home Management Service |
| HMS | Hybrid Management Sub-layer |
| HMSM | Hierarchical Multicast Stream Merging |
| HN | Home Networking |