| Acronym | Definition |
|---|
| FPSI | Fondation pour la Promotion des Soins Infirmiers (French: Foundation for the Advancement of Nursing; Switzerland) |
| FPSI | Formation Prévention Secourisme Incendie (French: Fire Prevention First Aid Training) |
| FPSI | Fiscal Policy Studies Institute (est. 1996; Santa Fe, NM) |
| FPSI | Fluid Power Safety Institute (advocacy; Salt Lake City, UT) |
| FPSI | Foundation for Public Service Interpreting (UK) |
| FPSI | Fujitsu Personal Systems, Inc. (computing) |
| FPSI | Finance, Private Sector and Infrastructure (World Bank) |
| FPSI | Fluid Power Society of India (Karnataka, India) |
| FPSI | Focal Plane Science Instrument |