INSEC
| Acronym | Definition |
|---|---|
| INSEC | Informal Sector Service Center |
| INSEC | Internal Security |
| INSEC | Insecurities in European Cities (research project) |
| INSEC | Instituto Socio-Económico Comunitario (Spanish: Socio-Economic Community Institute) |
| INSEC | Instituto de Estudos para a Competitividade (Brasil) |