HISS
| Acronym | Definition |
|---|---|
| HISS | Honda Ignition Security System (motorcycles) |
| HISS | Hepatic Insulin-Sensitizing Substance |
| HISS | Highland Integrated Surveillance Systems (Canada) |
| HISS | High Speed Sentry (toy) |
| HISS | Homeland Integrated Security Systems, Inc. (est. 2005; Arden, NC) |
| HISS | Holistic Inventory of Stimulus Sensitivities |
| HISS | High Speed Strike Initiative |
| HISS | High-performance Infrared Sniper Scope |
| HISS | Herptile Information Society of Saskatchewan (Canada) |
| HISS | Holographic Information Storage System |