PDS

Panzer Dragoon Saga
Parkinson's Disease Society of the UK
Partitioned data set (on IBM mainframes)
Particularly dangerous situation (added to a Storm Prediction Center watch)
PDS surgical suture (aka polydioxanone)
Peabody Demonstration School, a now-closed private school in Nashville, Tennessee
Permanent duty station in the U.S. Marine Corps
Petrotechnical Data Systems
Pharmaceutical Data Services
Photothermal Deflection Spectroscopy
Pigment Dispersion Syndrome
Planetary Data System, The PDS stores and distributing scientific data from NASA planetary missions, astronomical observations, and laboratory measurements
Plant Design System software made by Intergraph and is widely used for piping layout and allied design work.
Posttraumatic Stress Diagnostic Scale, a self-report measure meant to aid in detection of posttraumatic stress disorder
Pound sterling

Precision Drill Squad, an artistic performance skill performed by National Cadet Corps Cadets in Singapore
Premises distribution system, the physical data cabling within for example a building
Princeton Day School, a private JK-12 school in Princeton, New Jersey
Prinzhorn Dance School, a Brighton based band on DFA Records and their self titled album
Processor Direct Slot, in some Macintosh computers
Product design specification, a term used in product design
Product Disclosure Statement
Professional Development System
Programmer's Development System
Project Data Service
Protected Distribution System
Protocol Data Services, a British Information Technology services company
Providence Day School, a private elementary, middle, and high school in Charlotte, North Carolina
Public Distribution System
Pulse Discharge Sintering
Pushdown System, in computer science