| | EOQ | | End Of Question |
| | (XP) | | extreme programming |
| | alf | | extraterrestrials |
| | dur | | egg |
| | E&OE. | | Errors and Omissions Excepted |
| | E-OTD | | Enhanced Observed Time Difference |
| | E.D.G.E. | | Enhanced Data for GSM Evolution |
| | E.I.R.P. | | Equivalent Isotropic Radiated Power |
| | E.P.O.S. | | Electrical Point of Sale |
| | E/M | | Evaluation & Management |
| | EAD | | Encoded Archival Description |
| | EAD | | Extended Attribute Definition |
| | EAEC | | East Asia Economic Caucus |
| | EAEC | | East Asiatic Economic Council |
| | EAEC | | European Atomic Energy Community |
| | EAI | | Enterprise Application Integration |
| | EAK | | Eating At Keyboard |
| | EAM | | Enterprise Asset Management |
| | EAN | | European Article Numbering |
| | EASDAQ | | European Association of Securities Dealers Automated Quotation |
| | EAWWT | | Even A Worm Will Turn |
| | EBCDIC | | Extended Binary Coded Decimal Interchange Code |
| | EBE | | Extraterrestrial Biological Entity |
| | EBIT | | earnings before interest and taxes |
| | EBITDA | | Earnings Before Interest, Taxes, Depreciation |
| | EBKAC | | Error Between Keyboard And Chair |
| | EC | | European Community |
| | EC | | extracurricular |
| | EC,EG | | easy come, easy go |
| | ECBS | | Engineering of Computer Based Systems |
|