| Acronym | Definition |
|---|
| OSP➣Oregon State Police |
| OSP➣Outside Plant (telephone) |
| OSP➣Office of Sponsored Programs |
| OSP➣Office of State Personnel (North Carolina) |
| OSP➣Open Source Project (various locations) |
| OSP➣Oficina Sanitaria Panamericana (Spanish: Pan American Sanitary Bureau) |
| OSP➣Ontario Skills Passport (Canada) |
| OSP➣Open Space Preserve (various locations) |
| OSP➣Osservatorio Scolastico Provinciale (Italian: Provincial School Observatory) |
| OSP➣Off Street Parking |
| OSP➣Office of Special Plans (ad hoc American intelligence agency) |
| OSP➣Office of the Special Prosecutor (various organizations) |
| OSP➣Open Specification Promise (Microsoft) |
| OSP➣Organic System Plan (organic certification) |
| OSP➣Oregon State Parks |
| OSP➣Organizational Security Policies |
| OSP➣Open Source Physics |
| OSP➣Open Specification Promise |
| OSP➣Online Service Provider |
| OSP➣Optical Storage Processor |
| OSP➣on Screen Programming |
| OSP➣Operator Service Provider |
| OSP➣Office Service Pack |
| OSP➣Other Specification |
| OSP➣Optical Sensor Package |
| OSP➣Open Settlement Protocol |
| OSP➣Open Source Project |
| OSP➣Open Source Programming |
| OSP➣Open Source Portfolio |
| OSP➣Ole Database Simple Provider |
| OSP➣Open Services Platform |
| OSP➣Office Setup |
| OSP➣Osteoporosis |
| OSP➣Out of School Program (various locations) |
| OSP➣Office of State Purchasing (Louisiana) |
| OSP➣Open Source Photography |
| OSP➣Opportunity Scholarship Program |
| OSP➣Oblate Sisters of Providence |
| OSP➣Olympic Sculpture Park (Seattle, WA) |
| OSP➣Oral Sodium Phosphate (laxative solution) |
| OSP➣Open Source Platform (software) |
| OSP➣Orbital Space Plane (NASA) |
| OSP➣Overseas Studies Program (various locations) |
| OSP➣Organic Solderability Preservative |
| OSP➣Open Settlement Protocol (ETSI) |
| OSP➣Occupational Sick Pay |
| OSP➣Organic Surface Protection (circuit boards) |
| OSP➣Orange Smoothie Productions (gaming) |
| OSP➣Ochotnicza Straz Pozarna (Polish: village firebrigade) |
| OSP➣Old Spanish |
| OSP➣Ohio State Patrol |
| OSP➣Office of Science Policy (US EPA, Office of R&D) |
| OSP➣One Stop Portal (various locations) |
| OSP➣Official Selling Price (petroleum trading) |
| OSP➣Open Space Program (various locations) |
| OSP➣One-Stop Planner (education resource) |
| OSP➣Operations Support Package (US DoD) |
| OSP➣Outsource Service Provider (various organizations) |
| OSP➣Optimum Sustainable Population |
| OSP➣Office Suite Program (software; Microsoft) |
| OSP➣On-Line Service Provider |
| OSP➣Outside Processing |
| OSP➣On Screen Programming (computer monitor) |
| OSP➣Optical Signal Processing |
| OSP➣Online Shopping Password (security features) |
| OSP➣Old Sheffield Plate (type of silver plate) |
| OSP➣Orchid Seedbank Project (Chandler, AZ) |
| OSP➣Operating Systems Principles |
| OSP➣Offshore Procurement |
| OSP➣On-Site Procurement (gaming clan) |
| OSP➣Office of Statewide Prosecution (Florida) |
| OSP➣Ocean Survey Program |
| OSP➣Operational Service Period |
| OSP➣Operations Service Provider |
| OSP➣Organización de Servicios Profesionales (Spanish: Professional Services Organization; various locations) |
| OSP➣Outside Service Provider |
| OSP➣Orbital/Sub-orbital Program |
| OSP➣Ocean Surveillance Product |
| OSP➣Outside Plant Service |
| OSP➣Office of Scientific Personnel |
| OSP➣Other Service Program |
| OSP➣Operations Support Plan |
| OSP➣Online Sexual Problems |
| OSP➣Outside Processes |
| OSP➣Old School Presbyterian (US census abbreviation) |
| OSP➣Obiit Sine Prole (Latin: died without issue) |
| OSP➣Organization Standard Process |
| OSP➣Okuma Sampling Path |
| OSP➣Operational Support Product |
| OSP➣Offensive Stereotype Productions (website) |
| OSP➣Operational Support Package |
| OSP➣Occupational Surveillance Program |
| OSP➣Optimal Site Path |
| OSP➣Optical Shared Protection |
| OSP➣Order of St. Paul the First Hermit, Pauline Fathers (religious order) |
| OSP➣Optimized Software Process |
| OSP➣Optical Signatures Program |
| OSP➣Operator Splitting Pre-Conditioner |
| OSP➣On-Site Programmer |
| OSP➣Osaka Seling Printing (Japan) |
| OSP➣Ogden Support Page |
| OSP➣Objectives & Strategies Plan |
| OSP➣Open Systems Profile |
| OSP➣Operational Security Plan |
| OSP➣Output Signal Processing |
| OSP➣Oasis Stud Poker |