| | ERTW | | Equal Rights Towards Women |
| | ES&D | | Eat sh*t & Die |
| | ES&D | | Eat sh*t And Die |
| | ES<HI | | Eat sh*t & Live To Hate It |
| | ES<HI | | Eat sh*t And Live To Hate It |
| | ESAD | | eat sh*t and die |
| | ESADMF | | eat sh*t and die mother f**ker |
| | ESAL | | Eat sh*t And Live |
| | ESD | | evidential screening device |
| | ESMTP | | Extended Simple Mail protocol |
| | ESN | | Electronic Serial Number |
| | ESO | | Equipment Smarter < than> Operator |
| | ESO | | Equipment Smarter than Operator |
| | ESOSL | | Endless Snorts Of Stupid Laughter |
| | ESPN | | Entertainment and Sports Programming |
| | ETAC | | emergency tactical air control |
| | ETB | | End of Transmission Block |
| | ETB,ETR,MAMHWAW | | Early to bed, early to rise, makes a man healthy, wealthy and wise |
| | ETD | | Estimated time of departure |
| | ete | | Estimated Time En-route |
| | ETHOM | | Excuse the hell out of me |
| | ETLA | | Extended Three Letter Acronym |
| | ETOB | | Every Tub on Its Own Bottom |
| | ETSI | | European Telecommunications Standards Institute |
| | ETX | | End Of Text |
| | EUDC | | end-user-defined character |
| | EULA | | End User Licence Agreement |
| | EULA | | End User License Agreement |
| | EV-DO | | Evolution Data optimised |
| | EV-DV | | Evolution Data Voice |
|