| Acronym | Definition |
|---|
| ISIA➣Istituto Superiore per le Industrie Artistiche (Italian: Institute for Industrial Arts) |
| ISIA➣International Ski Instructors Association (Belp, Switzerland) |
| ISIA➣Information and Software Industry Association (Hong Kong) |
| ISIA➣Irish Security Industry Association (est. 1972; Dublin, Ireland) |
| ISIA➣Ice Skating Institute of America |
| ISIA➣Iowa Sheep Industry Association (Sibley, Iowa) |