| POST | Pacific Ocean Salmon Tracking 
| Others |
| POST | Parliamentary Office of Science and Technology
| Others |
| POST | Passive Optical Seeker Technique
| Others |
| POST | Payload Operations Support Team
| Others |
| POST | Peace Officer Standards and Training
| Others |
| POST | Peace Officer Standards Training
| Others |
| POST | Peace Officers Standards and Training
| Others |
| POST | Peninsula Open Space Trust
| Others |
| POST | People Objectives Strategy and Technology
| Others |
| POST | Philadelphia Open Studio Tours
| Others |
| POST | Philippi Outreaching Student Tabernacle
| Others |
| POST | Physician Order For Scope Of Treatment
| Others |
| POST | Physician Orders for Scope of Treatment
| Others |
| POST | Ping Over System Technique
| Others |
| POST | Platform Optimized for Security and Trust
| Others |
| POST | Point Of Sale Terminal
| Others |
| POST | Point Of Sales Terminal
| Others |
| POST | Point of Service Test
| Others |
| POST | Police Officer Standards and Training
| Others |
| POST | Portable Optical Sensor Tester
| Others |
| POST | Positive Operating System Test
| Others |
| POST | Post Officer Security Training
| Others |
| POST | Post-production
| Others |
| POST | Postal Station
| Others |
| POST | Power On Self Test
| Others |
| POST | Power on Self-Test
| Others |
| POST | Power On System Test
| Others |
| POST | Power-On Self Test
| Others |
| POST | Power-On Self-Test
| Others |
| POST | Pre-Operative System Test
| Others |
| POST | Printer Online Standard Test
| Others |
| POST | Program to Optimize Simulated Trajectories
| Others |
| POST | Programmable Optical Sensor Tracter
| Others |
| POST | Protecting our Students and Teachers
| Others |