| PFL | Partido da Frente Liberal | 自由阵线党 |
| PFL | Planned Flight Level | 计划飞行高度 |
| PFL | Practice Forced Landing | 练习强制着陆 |
| PFL | phrase-final lengthening (linguistics) | 短语最后加长（语言学） |
| PFL | Pre Fade Listen | 预淡化收听 |
| PFL | Paid for Listing (advertising) | 上市（广告）付费 |
| PFL | Priests for Life | 终身牧师 |
| PFL | Practical Family Living | 实用家庭生活 |
| PFL | profibrinolysin | 纤维蛋白原溶酶 |
| PFL | Pre Fader Listening | 预衰减监听 |
| PFL | ProFortress League | ProFortress联盟 |
| PFL | Portfolio (Lotus Freelance) | 投资组合（Lotus Freelance） |
| PFL | Pick The Flyers To Lead | 选择要领导的传单 |
| PFL | Prisoner For Life | 终身囚徒 |
| PFL | Psychrometric Function Library | 湿度函数库 |
| PFL | Private For Life | 终身保密 |
| PFL | Penguin Freud Library | 企鹅弗洛伊德图书馆 |
| PFL | Paid Family Leave | 带薪探亲假 |
| PFL | Partido da Frente Liberal (Liberal Front Party, Brazil) | 自由阵线党（巴西自由阵线党） |
| PFL | Printing for Less | 打印更少 |
| PFL | Paper Football League | 纸上足球联赛 |
| PFL | Professional Football League | 职业足球联赛 |
| PFL | Pass Football League | 传球足球联赛 |
| PFL | Plant Fuel Load | 工厂燃料负荷 |
| PFL | Pioneer Football League | 先锋足球联赛 |
| PFL | Packet Filtering Language (Firewall) | 数据包过滤语言（防火墙） |
| PFL | Pacific Forum Line | 太平洋论坛线 |
| PFL | Pillow Fight League | 枕头大战联盟 |
| PFL | Pulmonary Function Lab | 肺功能实验室 |
| PFL | Practiced Forced Landing | 实际迫降 |
| PFL | Pulse Forming Line | 脉冲形成线 |
| PFL | Pre-Fade Listening | 衰减前收听 |
| PFL | Pilot Fault List | 导向故障列表 |
| PFL | Port of Felixstowe (UK) | 费利克斯托港（英国） |
| PFL | Professional Futsal League | 职业五人制联赛 |