| Acronym | Definition |
|---|
| ECSL➣East Coast School of Languages (Canada) |
| ECSL➣European Centre for Space Law |
| ECSL➣Earth Charter Sierra Leone |
| ECSL➣Embedded Control Systems Language (distributed processing) |
| ECSL➣Espoir Cycliste de Sainte Luce (French cycling club) |
| ECSL➣End Customer Service Level |
| ECSL➣Espace Culturel Sud Loire (French: Cultural Center South Loire) |
| ECSL➣Equivalent Continuous Sound Level (electronic controled transmission) |
| ECSL➣Étoile Cycliste Sud Luberon Rognes (French cycling club) |
| ECSL➣European Counter-Strike League |
| ECSL➣Edmonton Christian Soccer League (Canada) |
| ECSL➣Enforcement Compliance Schedule Letter |
| ECSL➣Experimental Computer Systems Laboratory |
| ECSL➣Emulation Code Security Logic |
| ECSL➣East Citrus Soccer League (Inverness, FL) |