| RPSS | Rank Probability Skill Score 
| Others |
| RPSS | Ranked Probability Skill Score
| Others |
| RPSS | Real Property Safety Security
| Others |
| RPSS | Red Pill Sunday School
| Others |
| RPSS | Redundant Power Supply System
| Others |
| RPSS | Regional Planning Speakers Series
| Others |
| RPSS | Regional Program Support Specialist
| Others |
| RPSS | Regional PV Simulation System
| Others |
| RPSS | Registered Professional Soil Scientist
| Others |
| RPSS | Registry of Professional Soil Scientists
| Others |
| RPSS | Remote Proposal Submission System
| Others |
| RPSS | Remote Proposal Support System
| Others |
| RPSS | Rendezvous Point Selection Scheme
| Others |
| RPSS | Repetitive Peripheral Somatosensory Stimulation
| Others |
| RPSS | Research Protocol Safety Survey
| Others |
| RPSS | Resonance Peak Spectral Splitting
| Others |
| RPSS | Resource Planning Scheduling Subsystem
| Others |
| RPSS | Retail Performance Support System
| Others |
| RPSS | Retinitis Pigmentosa Society Singapore
| Others |
| RPSS | Revenue Protection Support Services
| Others |
| RPSS | Reverse Proxy Security Server
| Others |
| RPSS | Ricoh Printing Systems Singapore
| Others |
| RPSS | Rock Paper Safety Scissors
| Others |
| RPSS | Routing Policy System Security
| Others |
| RPSS | Royaye Parsian Study Services
| Others |
| RPSS | Rural Pharmacy Scholarship Scheme
| Others |
| RPSS | Russian and Post Soviet Studies
| Others |
| RPSS | Ryan Public Safety Solutions
| Others |
| RPSS | Ryukyu Philatelic Specialist Society
| Others |
| RPSS | Ryukyu Philatelic Specialists Society
| Others |