SEPT
| Acronym | Definition |
|---|---|
| SEPT | September |
| SEPT | Société d'Edition de Programme de Télévision (French: Television Program Publishing Company) |
| SEPT | Software Engineering Process Technology |
| SEPT | Settlement and Education Partnership in Toronto (Canada) |
| SEPT | Solar Electron and Proton Telescope |
| SEPT | South Essex Partnership University NHS (National Health Service) Foundation Trust |
| SEPT | Self-Esteem Protection Theory |