SSIH
| Acronym | Definition |
|---|---|
| SSIH | Société Suisse pour l'Industrie Horlogére (French: Swiss Society for the Watch Industry) |
| SSIH | Society for Simulation in Healthcare (also seen as SSH; Minneapolis, MN) |
| SSIH | State Street International Holdings (Boston, MA) |
| SSIH | Summer School in International Health (University of Copenhagen; Denmark) |
| SSIH | Stichting Sport Initiatieven Haarlem (Dutch: Sports Foundation Initiatives Haarlem; Haarlem, Netherlands) |