| Acronym | Definition |
|---|
| ESL➣English as a Second Language |
| ESL➣Electronic Sports League |
| ESL➣Electronic System Level |
| ESL➣Energy Systems Laboratory |
| ESL➣Elementary School Level (various locations) |
| ESL➣Environmental Solutions Ltd. (various locations) |
| ESL➣English Sign Language |
| ESL➣End of Service Life (product lifetime) |
| ESL➣Ejercito Sirio Libre (Spanish: Free Syrian Army) |
| ESL➣Early School Leaving |
| ESL➣European Super League (sports) |
| ESL➣Environmental Sciences Laboratory (various locations) |
| ESL➣Extended Shelf Life |
| ESL➣Electrostatic Loudspeaker |
| ESL➣Enterprise Systems Library |
| ESL➣Ethernet Service Layer |
| ESL➣Enterprise Storage Library |
| ESL➣Extensible Style Language |
| ESL➣Electronic Service Literature |
| ESL➣Engineering Systems Laboratory (various schools) |
| ESL➣Eighteenth Street Lounge (record label) |
| ESL➣Enghouse Systems Limited (Ontario, Canada) |
| ESL➣Electronic Services, Ltd. (various locations) |
| ESL➣Equivalent Series Inductance (L is inductance) |
| ESL➣Elista (Russia) |
| ESL➣Étoile Saint Laurent (French sports club) |
| ESL➣Entente Sud Lyonnais (French athletic club) |
| ESL➣Electronic Shelf Label |
| ESL➣Employer Stop Loss (insurance) |
| ESL➣Exit Stage Left (Rush album) |
| ESL➣East Slavic (linguistics) |
| ESL➣Equivalent Series Inductance (electronic component leads) |
| ESL➣Executive Search, Ltd. |
| ESL➣Electron-Stimulated Luminescence (lighting technology) |
| ESL➣Ecological Studies on the Lepidoptera |
| ESL➣Electrochemical and Solid-State Letters (electronic journal) |
| ESL➣Electronic Systems Laboratory |
| ESL➣Ether-Serial Link (computer device) |
| ESL➣Embedded Systems Laboratory |
| ESL➣Eastman Savings and Loan (Bank in Rochester, NY) |
| ESL➣Études Structures Logiciels (French: Academic Software Structures) |
| ESL➣Electrostatic Levitator (NASA Marshall Space Flight Center) |
| ESL➣Electronic Software Licensing |
| ESL➣Eastern Shores Library (Wisconsin) |
| ESL➣Espace Sports et Loisirs (French: Area Sports and Leisure) |
| ESL➣Expected Service Life |
| ESL➣École de Surf du Léon (French surfing school) |
| ESL➣etch-stop layer |
| ESL➣Economic Service Life |
| ESL➣Earned Sick Leave (employment-human resources) |
| ESL➣Explorer Scout Leader |
| ESL➣Event Specification Language |
| ESL➣Énergies Services Lannemezan (French energy provider) |
| ESL➣Entente Sportive Laneuvevilloise (French sports club) |
| ESL➣Emergency Service Level (FAA) |
| ESL➣European Sales List |
| ESL➣Enterprise Software Licensing |
| ESL➣End-User Subscription Licensing |
| ESL➣Equivalent Single-Layer |
| ESL➣Eng S Lustig Consulting Engineers Ltd (Tel-Aviv, Israel) |
| ESL➣Engine Speed Limit |
| ESL➣Ecological Screening Level |
| ESL➣Errored Second-Line |
| ESL➣Emergency Staffing Level |
| ESL➣East Side LAN (Phoenix/Mesa/Chandler Arizona LAN Organization) |
| ESL➣Equipment and Supply List |
| ESL➣Electro Signal Labs (GE Security) |
| ESL➣Engine Speed Limiting (system) |
| ESL➣External Sensor Lab (US DoD) |
| ESL➣Emitter Signal Library |
| ESL➣Enviroplan Services Limited |