| Acronym | Definition |
|---|
| PMI | Project Management Institute |
| PMI | Private Mortgage Insurance |
| PMI | Philip Morris International |
| PMI | Private Medical Insurance (various companies) |
| PMI | Piccole e Medie Imprese |
| PMI | Positive Material Identification |
| PMI | Protection Maternelle et Infantile (French: Mother and infant welfare) |
| PMI | Pima Medical Institute (Western US) |
| PMI | Plumbing Manufacturers Institute |
| PMI | Post-Merger Integration |
| PMI | Presidential Management Intern |
| PMI | Post Mortem Interval (forensics; time from when death occurs until the body is discovered) |
| PMI | Purchasing Manager's Index |
| PMI | Petites et Moyennes Industries (French: small and medium-sized industries) |
| PMI | Piccole e Medie Industrie |
| PMI | Pensions Management Institute |
| PMI | Pacific Maritime Institute (Seattle, WA) |
| PMI | Preventive Maintenance Inspection |
| PMI | Point of Maximal Impulse |
| PMI | Plus Minus Interesting |
| PMI | Patient Master Index (hospital database for patient demographic information) |
| PMI | Polymethacrylimide |
| PMI | Perioperative Myocardial Infarction |
| PMI | Pursuit Marketing, Inc. |
| PMI | Priority Mail International (USPS) |
| PMI | Personal Medical Insurance (UK) |
| PMI | Post Myocardial Infarction |
| PMI | Project Management Interface |
| PMI | Point of Maximum Impulse |
| PMI | Program Management Integration |
| PMI | Principle of Mathematical Induction |
| PMI | Person-Machine Interface (aka user interface) |
| PMI | Permission Management Infrastructure |
| PMI | Palma Mallorca, Mallorca Island, Spain - Palma Mallorca (Airport Code) |
| PMI | Patient Movement Items |
| PMI | Positive Material Inspection |
| PMI | Philip Morris Institute |
| PMI | Pre-Market Indicator |
| PMI | Philippine Maritime Institute |
| PMI | Planned Maintenance Interval |
| PMI | Point of Maximal Impact (cardiac exams) |
| PMI | Preliminary Marksmanship Instruction |
| PMI | Primary Marksmanship Instruction (US Army) |
| PMI | Public Management Initiative (Stanford University; California) |
| PMI | Principle Maintenance Inspector |
| PMI | Physician Management Institute (Canadian Medical Association) |
| PMI | Privatized Military Industry |
| PMI | Post Merge Integration |
| PMI | Perimeter Ministries International |
| PMI | Policy Management Infrastructure |
| PMI | Preventive Maintenance Instructions |
| PMI | Proposed Military Improvement |
| PMI | Project Management Intern |
| PMI | Prevention of Mutual Interference |
| PMI | PM (evening) Inspection (US Military Academy) |
| PMI | Personnel Management Intern |
| PMI | Production Manager Index |
| PMI | Privileged Management Infrastructure |
| PMI | Production Modernization Initiative |
| PMI | Programming Modeling Interface (IBM) |
| PMI | Physical Model Interface |
| PMI | Pure Metal Insert |
| PMI | Process Manager Infrastructure |
| PMI | Periodic Maintenance Interval |
| PMI | Pressure Mean Indicator (marine engines) |
| PMI | Present-Minded Individualism |
| PMI | Proof of Mathematical Induction |
| PMI | Processor Maintenance Interface (Tandem) |
| PMI | Provost Marshal Investigator |
| PMI | Politico-Military Interactions |
| PMI | Picture Manipulation Instruction |
| PMI | Power Margin Indicator |
| PMI | Prestation de Maintenance Intégrée (French: Integrated Maintenance Services) |
| PMI | Precoding Matrix Indicator (telecommunications) |
| PMI | Prior Mutual Information |
| PMI | Planar Monolithics Industries (various locations) |
| PMI | Principal Mortgage Insurance (housing) |
| PMI | Private Medical Information |
| PMI | Paradigm Medical Industries (est. 1996) |
| PMI | Purina Mills, Inc. |
| PMI | Plant-Microbe Interactions (research group) |
| PMI | Picture Music International |
| PMI | Power Medical Interventions (Langhorne, PA) |
| PMI | Piping Material Identification |
| PMI | Photo-Me International (various locations) |