| Acronym | Definition |
|---|
| PECU➣Public Employees Credit Union (various locations) |
| PECU➣Portable Exothermic Cutting Unit (rescue and damage equipment) |
| PECU➣Photocell Electronic Control Unit (Micatron) |
| PECU➣Privatwirtschaftlicher Energie Contracting Unternehmen (German: Association of Private Economic Energy Contracting Companies) |
| PECU➣Postal Employees' Credit Union (Memphis, TN) |
| PECU➣Patriot Equity Credit Union (est. 1929) |
| PECU➣Pitch Electronic Control Unit (avionics) |
| PECU➣Princeton Employees Credit Union (Ohio) |