| Acronym | Definition |
|---|
| PSG | Paris Saint-Germain (Paris Football Team) |
| PSG | Passenger |
| PSG | Personal Systems Group |
| PSG | Professional Services Group (Peoplesoft, Inc.) |
| PSG | Polysomnogram |
| PSG | Public Sector Governance (various organizations) |
| PSG | Pacific School Games (Australia) |
| PSG | Programmable Sound Generator |
| PSG | Professional Service Group |
| PSG | Pressure Sensor Glow |
| PSG | Primate Specialist Group (International Union for Conservation of Nature) |
| PSG | Pershing |
| PSG | Platoon Sergeant |
| PSG | Phrase Structure Grammar |
| PSG | Presidential Security Group (Philippines) |
| PSG | Product Support Group |
| PSG | Project Steering Group |
| PSG | Polysomnograph |
| PSG | Pacific Seabird Group |
| PSG | Programmable Sound Generator (General Instruments chip) |
| PSG | Property Search Group (UK) |
| PSG | Pfadfinderinnenschaft Sankt Georg (German: Girl Guide Association of St. George) |
| PSG | Partner Services Group (various companies) |
| PSG | Processing Solutions Group (Xilinx) |
| PSG | Public Service Grant |
| PSG | Partir sans Gagner (French: Leave without Winning) |
| PSG | Pagan Spirit Gathering |
| PSG | Public Safety Group |
| PSG | Punter Southall Group (London, UK) |
| PSG | Pine Street Group (Seattle, WA) |
| PSG | Port Security Grant (US government) |
| PSG | Patti Smith Group (band) |
| PSG | Parti Socialiste Genevois (French) |
| PSG | Perchlorate Study Group |
| PSG | Partido Socialista Galego |
| PSG | Pure Steam Generator |
| PSG | Patient Support Group |
| PSG | Platform Solution Group (various companies) |
| PSG | Public Strategies Group, Inc. (St. Paul, MN) |
| PSG | Phospho Silicate Glass |
| PSG | Perak State Government (Malaysia) |
| PSG | Petersburg, AK, USA - Municipal (Airport Code) |
| PSG | Powder Spray Gun (various companies) |
| PSG | Printing Systems Group |
| PSG | Pseudorandom Sequence Generator (electronics) |
| PSG | Physical Science Group |
| PSG | Portfolio Strategies Group |
| PSG | Primary Switchgear |
| PSG | Planning Support Group |
| PSG | Packet-Switched Gateway |
| PSG | Passive Signal Generation |
| PSG | Prazisions Scharfshutzen Gewehr (Heckler and Koch sniper rifle) |
| PSG | Parti Socialiste de Guyanais (French: Guyanese Socialist Party) |
| PSG | Personnel Support Group |
| PSG | Preliminary Study Group |
| PSG | Postal Strategy Group (Universal Postal Union) |