ISNA
| Acronym | Definition |
|---|---|
| ISNA | Iranian Students' News Agency |
| ISNA | Islamic Society of North America |
| ISNA | Intersex Society of North America |
| ISNA | Indiana State Nurses Association (est. 1903; Indianapolis, IN) |
| ISNA | Instituto Salvadoreño Para El Desarrollo Integral de La Niñez Y La Adolescencia (Spanish: Institute for the Integral Development of Children and Adolescents; El Salvador) |
| ISNA | Iran and Syria Nonproliferation Act |
| ISNA | Indiana State Numismatic Association |