| PDAS | Pathology Department Administrators Section 
| Others |
| PDAS | Personal Digital Assistants These
| Others |
| PDAS | Phone Dial Attempt Supervisor
| Others |
| PDAS | Photodiode Array Spectrophotometer
| Others |
| PDAS | Pilotage Distributed Aperture Sensor
| Others |
| PDAS | Plagiarism Detector Accumulator Server
| Others |
| PDAS | Porsche Dynamische Allrad Steuerung
| Others |
| PDAS | Principal Deputy Assistant Secretary
| Others |
| PDAS | Proactive Driver Alert System
| Others |
| PDAS | Professional Development And Appraisal System
| Others |
| PDAS | Professional Development Appraisal System
| Others |
| PDAS | Professional Development Approval System
| Others |
| PDAS | Public Domain Aeronautical Software
| Others |