| Acronym | Definition |
|---|
| ESAC | European Space Astronomy Centre (Madrid, Spain) |
| ESAC | École Supérieure de l'Audiovisuel et du Cinéma (French: School of Cinema and Audiovisual; Tunisia) |
| ESAC | Eastern Shore Art Center (Alabama) |
| ESAC | European Surveillance of Antimicrobial Consumption |
| ESAC | École Supérieure des Arts du Cirque (French: Graduate School of Circus Arts; Belgium) |
| ESAC | Employer Services Assurance Corporation |
| ESAC | Egon Schiele Art Centrum (Ceský Krumlov, Czech Republic) |
| ESAC | Electronic Shock Absorber Control |
| ESAC | European Study Abroad Center |
| ESAC | Ensuring Stability Through Action in Our Community (Boston, MA, USA) |
| ESAC | Energy Systems Analysis Consortium (USA) |
| ESAC | Employment and Social Affairs Committee (EU) |
| ESAC | Electronic Systems Assistance Center |
| ESAC | Écurie Slalom-Auto.com (French auto racing) |
| ESAC | Education Services Advisory Committee (United Kingdom) |
| ESAC | École Supérieure Arts et Communication (French: Graduate School Arts and Communication) |
| ESAC | Electrical & Systems Advanced Control (Canada) |
| ESAC | Electronic Switching Administration Center |
| ESAC | Escuela Superior Agraria de Coimbra (Portuguese: Agricultural College of Coimbra; Portugal) |
| ESAC | Environmental Staff Advisory Committee (Los Angeles City Planning Department) |