| Acronym | Definition |
|---|
| PFL | Personal Fall Limiter (safety product; Miller Fall Protection) |
| PFL | Preparation for Life (est. 1997) |
| PFL | Pyruvate Formate Lyase (enzyme) |
| PFL | Passion for Life |
| PFL | Popular Front for the Liberation |
| PFL | Paid Family Leave |
| PFL | Partido da Frente Liberal (Liberal Front Party, Brazil) |
| PFL | Pre Fade Listening |
| PFL | Provider Flags |
| PFL | President for Life (title) |
| PFL | Pioneer Football League |
| PFL | Priests for Life |
| PFL | Partners for Life |
| PFL | Preparation for Future Learning (various schools) |
| PFL | Powder Free Latex (gloves) |
| PFL | Pillow Fight League |
| PFL | Professional Football League |
| PFL | Platforms for Learning (Oregon State University) |
| PFL | Pre Fade Listen |
| PFL | Printing for Less |
| PFL | Patellofemoral Ligament |
| PFL | Pre-Fade Listening |
| PFL | Practical Family Living (Appleton, WI) |
| PFL | Pacific Forum Line |
| PFL | Port of Felixstowe (UK) |
| PFL | Pal for Life |
| PFL | Pulmonary Function Laboratory (various locations) |
| PFL | Pulse Forming Line |
| PFL | Parallel Functional Language (computing) |
| PFL | Practice Forced Landing |
| PFL | Paper Football League |
| PFL | Pilot Fault List |
| PFL | Project Forward Leap (Philadelphia, PA) |
| PFL | Planned Flight Level |
| PFL | Pulmonary Function Lab |
| PFL | Professional Futsal League |
| PFL | Paid for Listing (advertising) |
| PFL | Practiced Forced Landing |
| PFL | Packet Filtering Language (Firewall) |
| PFL | Plant Fuel Load |
| PFL | phrase-final lengthening (linguistics) |
| PFL | Ping for Later (Internet slang) |
| PFL | Performance for Life (proprietary chiropractic program and certification) |
| PFL | Pass Football League |
| PFL | Player for Life |
| PFL | Posting for Later (internet slang) |
| PFL | Polymeric Flocculation (wastewater treatment technology) |
| PFL | Potter for Life (Harry Potter fan forum) |