| Acronym | Definition |
|---|
| INSS | Instituto Nacional do Seguro Social (Brazil) |
| INSS | Instituto Nacional do Seguro Social (Portugese: National Institute for Social Security; Brazil) |
| INSS | Instituto Nacional de la Seguridad Social (Spain's Social Security National Institute) |
| INSS | Institute for National Security Studies |
| INSS | Institute for National Security Strategy (Seoul, South Korea) |
| INSS | International Conference on Networked Sensing Systems |
| INSS | Institute for National Strategic Studies (National Defense University) |
| INSS | Incremental Neuro-Symbolic System |
| INSS | Integrated Network Support System |
| INSS | Internet and Networking Security Solutions Incorporated S.a (San Jose, Costa Rica) |