| Abbreviation | Definition |
|---|---|
| OEE | Overall Equipment Effectiveness |
| OEF | Original Electronic Format |
| OEFS | Optical Electric Field Sensor |
| OEFS | Opto Electric Field Sensor |
| OEIC | OptoElectronic Integrated Circuit |
| OEL | Online Electronics Liquidation |
| OEM | Original Engineers Model |
| OEM | Original Equipment Manufacturer |
| OEMT | Opto-Electric Measuring Transducer |
| OEO | Optical Electrical Optical |
| OEPC | Okinawa Electric Power Company |
| OEPD | Optimal Electrical Power Distribution |
| OERM | Oregon Electric Railway Museum |
| OES | Ontario Electronic Stewardship |
| OESI | Omaha Electric Service, Inc. |
| OET | Organic Electronic Technologies |
| OETF | Opto-Electronic Transfer Function |
| OEU | Ocala Electric Utility |
| OEU | Ohio Electric Utility |
| OEU | Oklahoma Electric Utility |