| Acronym | Definition |
|---|
| SESA | Southeastern South America |
| SESA | Special Education Service Agency |
| SESA | State Employment Security Agency |
| SESA | Sistemas Electronicos SA (Spanish: Electronic Systems) |
| SESA | Society for Experimental Stress Analysis |
| SESA | Systems Engineering Society of Australia |
| SESA | Servicio Ecuatoriano de Sanidad Agropecuaria (Ecuador) |
| SESA | Servicio Ecuatoriano de Sanidad Agropecuaria (Agricultural Sanitary Ecuadorian Service) |
| SESA | Symantec Enterprise Security Architecture |
| SESA | Southeastern Shrine Association (est. 1934) |
| SESA | Stanley Electric Sales of America (Irvine, CA) |
| SESA | Sports Event Security Aware |
| SESA | Sociedad Espanola de Sanidad Ambiental (Spanish) |
| SESA | Support for Exhibitions and Seminars Abroad (UK) |
| SESA | Scottish Environmental Services Association |
| SESA | Scuola Europea di Studi Avanzati (Italian: European School of Studies) |
| SESA | Centre d'Etudes Socio-Économiques de la Santé (French) |
| SESA | Sistema de Educación Superior de Antioquia (Spanish) |
| SESA | Southeast Sign Association |
| SESA | Subacute Encephalopathy with Seizures in Alcoholics |
| SESA | Saskatchewan Exercise Science Association (Canada) |
| SESA | Semiconductor Equipment Sales Associates, Inc |
| SESA | Social, Educational, Spiritual, Apostolic (ministry) |
| SESA | Software Engineering Students' Association |
| SESA | Student Exchange & Study Abroad |
| SESA | Student Education and Service Ambassadors |
| SESA | Students of English Studies Association |
| SESA | South Eastern School of Anaesthesia (UK) |
| SESA | Socio-Economic Spatial Analysis (Canada) |
| SESA | Southeastern Sailing Association, Inc (Florida) |
| SESA | Sphere Extension Service for Afghanistan |
| SESA | Systems Engineering and Safety Analysis |
| SESA | Suggestion and Extraordinary Service Award |
| SESA | South East Sheriffs Area (Wisconsin) |
| SESA | Southeastern Septic Association |
| SESA | Support Equipment Situational Awareness |
| SESA | Shepherd Education Student Association |
| SESA | Support Element Selection Algorithm |
| SESA | Société d'Etudes Scientifiques d'Angers (French: Scientific Survey firm of Angers) |
| SESA | Sigonella Enlisted Spouse Association |
| SESA | Sembach Enlisted Spouses Association |
| SESA | Support Equipment Selection Analysis |
| SESA | Southern Enhanced Sounding Array |
| SESA | Southeast Sporthorse Association |