| Acronym | Definition |
|---|
| IDSA➣Infectious Diseases Society of America |
| IDSA➣Industrial Designers Society of America |
| IDSA➣Interactive Digital Software Association |
| IDSA➣Institute for Democracy in South Africa |
| IDSA➣International Dark Sky Association |
| IDSA➣Institute for Defense Studies and Analyses (India) |
| IDSA➣Indian Direct Selling Association |
| IDSA➣Irish Deaf Sports Association |
| IDSA➣International Digital Software Association |
| IDSA➣International Design Society of America |
| IDSA➣Irish Diaspora in Scotland Association |
| IDSA➣Inter-Departmental Support Agreement |