ISSH
| Acronym | Definition |
|---|---|
| ISSH | Idaho State School and Hospital (Nampa, ID) |
| ISSH | International School of the Sacred Heart (Tokyo, Japan) |
| ISSH | International Symposium on Stochastic Hydraulics (est. 1972) |
| ISSH | Instituti I Sigurimeve Shoqërore (Albanian: Social Insurance Institute) |
| ISSH | Indian Standard Sheet (steel construction) |
| ISSH | In Situ Suppression Hybridization |