| Acronym | Definition |
|---|
| ISH➣International Society of Hypertension (est. 1966; UK) |
| ISH➣In Situ Hybridization |
| ISH➣Irish Sport Horse |
| ISH➣Improved Sanitation and Hygiene |
| ISH➣Insert Sarcasm Here (Internet slang) |
| ISH➣International School of the Hague (Netherlands) |
| ISH➣Isolated Systolic Hypertension |
| ISH➣Information Superhighway |
| ISH➣In-Situ Hybridisierung (molecular biology) |
| ISH➣International Superhits (Green Day album) |
| ISH➣Intermediate System Hello |
| ISH➣Information Super Highway |
| ISH➣Ian Schrager Hotels (New York, NY) |
| ISH➣International Society of Hypnosis |
| ISH➣It Surely Helped |
| ISH➣Image Scan Holdings (UK) |
| ISH➣Industry Super Holdings (Australia) |
| ISH➣Inner Self-Helper (psychology) |
| ISH➣Interactive Search Holdings, Inc. |
| ISH➣Internal Self Helper |
| ISH➣International Sanitation and Heating (trade show) |
| ISH➣Integrated Service Hub (Sprint) |
| ISH➣Industrial Safety and Health Program Services |
| ISH➣Interim Scout Helicopter |
| ISH➣Institute for the Study of Health (Ohio) |
| ISH➣Instituti I Studimeve Hidroteknike (Albanian: Institute of Hydrotechnichal Studies & Design) |