| Acronym | Definition |
|---|
| ESSA | Every Student Succeeds Act (education law) |
| ESSA | École du Service de Santé des Armées (French: School of Army Health Service) |
| ESSA | Environmental Science Services Administration |
| ESSA | École Supérieure de Sophrologie Appliquée (French: School of Applied Sophrology) |
| ESSA | Emergency Systems Survivability Analysis |
| ESSA | English Schools Swimming Association |
| ESSA | Economic Society of South Africa |
| ESSA | École Supérieure du Soudage et de Ses Applications (French welding school) |
| ESSA | Emergency Social Services Association |
| ESSA | European Social Simulation Association Conference |
| ESSA | European Scientists Sequencing Arabidopsis |
| ESSA | Eastern Shan State Army |
| ESSA | Earth Systems Science Agency |
| ESSA | Extraterrestrial Solar Sinter Architecture Project (3D printing) |
| ESSA | Stockholm Arlanda Airport, Sweden (ICOA code) |
| ESSA | Electronic Systems Security Assessment |
| ESSA | Environmental Science Students Association |
| ESSA | Employment Service Systems Administrator (UK) |
| ESSA | East of Scotland Squash Association |
| ESSA | Electronic Systems Security Analyst (USAF) |
| ESSA | Explosive Safety Self Assessment |
| ESSA | Engineering of Software Services for Pervasive Environments (workshop) |