SEJ
| Acronym | Definition |
|---|---|
| SEJ | Search Engine Journal |
| SEJ | Seven-Eleven Japan |
| SEJ | Service Enfance Jeunesse (French: Child Youth Service) |
| SEJ | Sports Elite Jeunes (French: Elite Youth Sports) |
| SEJ | Students for Economic Justice (various universities) |
| SEJ | Society for Environmental Journalists |
| SEJ | Sciascia Ensemble Japan |
| SEJ | Southerners for Economic Justice (various locations) |
| SEJ | Société d'Etudes Jaurésiennes (French: Jean Jaurès Study Society) |
| SEJ | Solar Energy Journal (International Solar Energy Society) |