| PFI | Port Fuel Injection | 喷嘴燃油喷射 |
| PFI | Programmed Fuel Injection | 程式控制燃料喷射 |
| PFI | Pipe Fabrication Institute | 管道制造协会 |
| PFI | Public Financial Institution (India) | 公共金融机构(印度) |
| PFI | Positive Financial Impact | 积极的财务影响 |
| PFI | Private Finance Initiative (UK) | 私人融资倡议(英国) |
| PFI | Practical Farmers of Iowa | 爱荷华州实用农民 |
| PFI | Pet Food Institute | 宠物食品研究所 |
| PFI | Pastoral Formation Institute | 田园形成研究所 |
| PFI | Payload FCS (Frame Check Sequence) Indicator | 有效载荷FCS(帧检查序列)指示器 |
| PFI | Private Finance Initiative | 私人融资倡议 |
| PFI | Pellet Fuels Institute | 颗粒燃料研究所 |
| PFI | Programmable Function Input | 可编程功能输入 |
| PFI | Pay for Inclusion (web search engines) | 付费共享(网络搜索引擎) |
| PFI | Prison Fellowship International | 国际监狱联谊会 |
| PFI | Power Fail Interrupt | 电源故障中断 |
| PFI | Public Finance Initiative | 公共财政倡议 |
| PFI | Port Fuel Injection (engines) | 端口燃油喷射(发动机) |
| PFI | Partnerships for Inclusion | 包容性伙伴关系 |
| PFI | Pagtinabangay Foundation, Inc. | Pagtinabangay基金会。 |
| PFI | Planning For Improvement | 改进计划 |
| PFI | Postpone Funding Indefinitely | 无限期推迟融资 |
| PFI | Profits From Illness | 疾病利润 |
| PFI | Paws For Independence | 独立之爪 |
| PFI | Public Funding Iniquity | 公共资金不足 |
| PFI | Private Fax Interface | 专用传真接口 |
| PFI | Patapsco Female Institute (Maryland) | 帕塔普斯科女子学院(马里兰州) |
| PFI | Presence From Innovation LLC | Innovation LLC的存在 |
| PFI | Pagan Federation International | 国际异教徒联合会 |
| PFI | Pre-Fire Inspection | 火灾前检查 |
| PFI | physical fitness index | 体质指数 |
| PFI | Prismaflex International | Pristaflex国际 |
| PFI | Pay For Inclusion | 为包容性付费 |
| PFI | Personal Finance Initiative | 个人金融倡议 |
| PFI | Pelican Financial, Inc. | Pelican Financial公司。 |
| PFI | Pro-Forma Invoice (Customs) | 形式发票(海关) |
| PFI | Paul Fletcher International | 保罗·弗莱彻国际 |
| PFI | Permanent Functional Impairment | 永久性功能损害 |
| PFI | Perishable Fruit Inspector | 易腐水果检验员 |
| PFI | Pride Fowler Industries | Pride Fowler Industries公司 |
| PFI | Provisional Full Internet | 临时完整Internet |
| PFI | Private Finance Agreement | 私人融资协议 |
| PFI | Programmable Fuel Injection | 可编程燃油喷射 |
| PFI | Prolonged Financial Income | 长期财务收入 |
| PFI | Political Fudge Indicator | 政治模糊指标 |