| Acronym | Definition |
|---|
| PSP | PlayStation Portable (Sony) |
| PSP | Paint Shop Pro (Corel Corp) |
| PSP | Personal Software Process |
| PSP | Progressive Supranuclear Palsy |
| PSP | Paralytic Shellfish Poisoning |
| PSP | Pennsylvania State Police |
| PSP | Payment Service Provider |
| PSP | Private Sector Participation |
| PSP | Polícia de Segurança Pública (Portugal) |
| PSP | Power Steering Pump (automobiles) |
| PSP | PL/SQL Server Pages (Oracle) |
| PSP | Preventive Service Planning |
| PSP | Personnel Support Programs |
| PSP | Pressure Sensitive Paint |
| PSP | Product Service Plan |
| PSP | Physical Security Professional (American Society for Industrial Security) |
| PSP | Profit Sharing Plan |
| PSP | Partido Socialista Popular (Cuban Communist Party) |
| PSP | Program Segment Prefix |
| PSP | Phi Sigma Pi |
| PSP | Partido Sociedad Patriótica (Spanish: Patriotic Society Party, Ecuador) |
| PSP | Park Slope Parents (Park Slope, NY) |
| PSP | Paintball Sports Promotions |
| PSP | Pacifistisch Socialistische Partij |
| PSP | Personal Support Program (Australia) |
| PSP | Proposal Solicitation Package |
| PSP | Prime Sierpinski Project |
| PSP | Professional Skills Program |
| PSP | Performance Service Plan (product service plan offered at Best Buy stores) |
| PSP | Postsynaptic Potential |
| PSP | Problem-Solving Process |
| PSP | Power Steering Pressure (automobiles) |
| PSP | Polysaccharide Peptide |
| PSP | Precision Spectral Pyranometer |
| PSP | Professional/Scholarly Publishing Division (Association of American Publishers) |
| PSP | Protein Structure Prediction (protein 3D conformation prediction at rest) |
| PSP | Pierced Steel Planking |
| PSP | Permanent Sample Plot (forestry) |
| PSP | Print Service Provider |
| PSP | Programmable Signal Processor |
| PSP | Per-Survivor Processing |
| PSP | Pointed Soft Point (bullet) |
| PSP | Pointed Soft Point |
| PSP | Peoples Salvation Party (Nigeria) |
| PSP | Praja Socialist Party (India) |
| PSP | Processor Support Package |
| PSP | Participatory Strategic Planning |
| PSP | Public, Semi-Public (Zoning class for land use) |
| PSP | Plastic Surgery Products (trade magazine) |
| PSP | Python Server Page |
| PSP | Plasma Spraying (welding) |
| PSP | perforated steel planking (US DoD) |
| PSP | Project Study Plan |
| PSP | Planning & Scheduling Professional |
| PSP | Partido Socialista Puertorriqueño (Puerto Rican Socialist Party) |
| PSP | Penn State Philips |
| PSP | Plasma Separation Process |
| PSP | Payroll Savings Plan |
| PSP | Principal State of Polarization (property of FO cables) |
| PSP | Partners for Sacred Places |
| PSP | Preliminary Subdivision Plan (city planning) |
| PSP | Palm Springs, CA, USA - Palm Springs Municipal (Airport Code) |
| PSP | Personal Survival Pack |
| PSP | Power Support Platform |
| PSP | Politeknik Seberang Perai (Permatang Pauh, Pulau Pinang, Malaysia) |
| PSP | Payload Signal Processor |
| PSP | Production Software Package |
| PSP | Program Support Plan |
| PSP | Philadelphia School of Psychoanalysis |
| PSP | Provide Strategic Planning |
| PSP | Pedestrian Safety Program (Canada) |
| PSP | Power Saving Protocol |
| PSP | Product Support Program |
| PSP | Point of Sale Processor |
| PSP | Primary Sodium Pump |
| PSP | Portable Sensor Platform |
| PSP | Production Service Provider |
| PSP | Poor Sexual Performance |
| PSP | Physician Sponsor Plan |
| PSP | Psychological Support Program (International Federation of Red Cross) |
| PSP | Point Singularity Projector (Andromeda TV series) |
| PSP | Performance Standards Program |
| PSP | Priced Spare Parts |
| PSP | Public Service Profile |
| PSP | Push Stack Pointer (6502 processor instruction) |
| PSP | Partido do Servidor Público (Public Service Party) |
| PSP | Peach State Posse (Georgia corvette group) |
| PSP | Product Support Provider (US Army) |
| PSP | Phenolsulfanphthalein |
| PSP | Pneumatic Supply Pressure |
| PSP | Performance Surveillance Plan (NASA) |
| PSP | Poll/Select Protocol (Unisys) |
| PSP | Pump Storage Project |
| PSP | Primary Spare Part |
| PSP | Program and Support Plan |
| PSP | Physician Sponsor Program |
| PSP | Probability of Successful Penetration |
| PSP | Personnel Subsystem Process |
| PSP | Part Stress Prediction (engineering) |
| PSP | Pseudostatic Selfpotential |
| PSP | Planet Soft Pages |
| PSP | Programmable Scanner Position |
| PSP | Professional Speaker Program |
| PSP | Park Slope Pediatric (Brooklyn, NY) |
| PSP | Private Satellite Program |