| Acronym | Definition |
|---|
| PEF | Procesos de Educación en la Fe (Spanish: Processes of Education in Faith) |
| PEF | Peak Expiratory Flow |
| PEF | Permanent Endowment Fund (various organizations) |
| PEF | Pan European Federation (various organizations) |
| PEF | Polish Enterprise Fund (equity fund) |
| PEF | Presupuesto de Egresos de La Federación (Spanish: Federal Expenditures Budget; Mexico) |
| PEF | Polyethylene Furanoate |
| PEF | Prediction Error Frame |
| PEF | Pulsed Electric Field |
| PEF | Pooled Endowment Fund (various schools) |
| PEF | Public Education Fund (various locations) |
| PEF | Public Education Foundation |
| PEF | Private Equity Fund |
| PEF | Perpetual Education Fund (LDS church) |
| PEF | Private Enterprise Foundation (Ghana; est. 1994) |
| PEF | Panasonic Education Foundation (Japan) |
| PEF | Project Evaluation Form (various organizations) |
| PEF | Philippine Eagle Foundation |
| PEF | Preferred Executable Format (Mac OS) |
| PEF | Public Employees Federation AFL-CIO (New York State Public/Private Sector Union) |
| PEF | Police Equipment Foundation (Nigeria) |
| PEF | Particulate Emissions Filter (vehicles) |
| PEF | Personal Experience Factor (marketing) |
| PEF | Platform Event Filter |
| PEF | Primate Enrichment Forum |
| PEF | Popular Equipment Finance (formerly Popular Leasing USA) |
| PEF | Photo-Electric Factor |
| PEF | Plasma-Enhanced Floodgun |
| PEF | Polyethylene Fiber |
| PEF | Presidential Emergency Facility (Mount Weather complex) |
| PEF | Process Evaluation Facility |
| PEF | Proxy Element Function |
| PEF | Process Engineering Facility |
| PEF | Process Engineering Flow |
| PEF | Pseudo-Elliptic Filter |
| PEF | Pressure Elevation Factor (natural gas billing) |
| PEF | Pre Export Finance |
| PEF | Partner Efficiency Fee (Hewlett-Packard Development Company, L.P.) |