| Acronym | Definition |
|---|
| ECSP | EC-Council (International Council of Electronic Commerce Consultants) Certified Secure Programmer |
| ECSP | Environmental Change and Security Project |
| ECSP | Évaluation de la Communication Sociale Précoce (French: Evaluation of the Early Social Communication) |
| ECSP | Espace Culturel et Social de la Pranzière (French cultural center) |
| ECSP | Exceptional Case Study Project |
| ECSP | Electronic Communications Service Provider |
| ECSP | E-Commerce Service Provider |
| ECSP | Electronic Control Signal Processor |
| ECSP | Electronic Command Signal Processor |
| ECSP | Erasmus Centre for Strategic Philanthropy (Netherlands) |
| ECSP | East Coast Sports Photography |
| ECSP | Essex County Summer Players |