PECI
| Acronym | Definition |
|---|---|
| PECI | Portland Energy Conservation, Inc. (Portland, Oregon) |
| PECI | Platform Environment Control Interface |
| PECI | Productivity Enhancing Capital Investment |
| PECI | Productivity Enhancement Capital Investment |
| PECI | Product Exceeds Customer's Intelligence |
| PECI | Preliminary Equipment/Electronic Component Index |
| PECI | Perry Correctional Institution (South Carolina Department of Corrections) |