| Acronym | Definition |
|---|
| PCU | Progressive Care Unit |
| PCU | Pressure Control Unit (ventilation unit) |
| PCU | Power Control Unit |
| PCU | Power Connection Unit |
| PCU | Power and Cooling Unit |
| PCU | Payload Checkout Unit |
| PCU | Pre Commissioning Unit |
| PCU | Processor Cooling Unit |
| PCU | Pre-Commissioning Unit |
| PCU | Plant Conservation Unit (University of Cape Town; South Africa) |
| PCU | Primary Care Unit (hospital) |
| PCU | Project Coordination Unit |
| PCU | Peak Concurrent Users (online gaming) |
| PCU | Postanesthesia Care Unit |
| PCU | Philippine Christian University (Manila, Philippines) |
| PCU | Packet Control Unit |
| PCU | Protective Combat Uniform |
| PCU | Pinellas County Utilities (Clearwater, FL) |
| PCU | Population Correction Unit |
| PCU | Photoconductor Unit (photocopier) |
| PCU | Power Conversion Unit |
| PCU | Paramount California University (Irvine, CA) |
| PCU | Power Conditioning Unit |
| PCU | Programme Coordination Unit |
| PCU | Passenger Car Unit |
| PCU | Process Control Unit |
| PCU | Project Coordinating Unit |
| PCU | Port Chester University (movie) |
| PCU | Polycarbonate Urethane |
| PCU | Payload Checkout Unit (US NASA) |
| PCU | Passenger Control Unit |
| PCU | Paolo Cherchi Usai (film preservationist) |
| PCU | Peripheral Control Unit |
| PCU | Politically Correct University (movie) |
| PCU | Prank Call Underground (internet radio) |
| PCU | Pass Christian University (online school; Sioux Falls, SD) |
| PCU | Piedmont Credit Union (Danville, VA) |
| PCU | Platinum Cobalt Units |
| PCU | Pollution Control Unit |
| PCU | Power Converter Unit |
| PCU | Per Channel Use |
| PCU | Pulmonary Care Unit |
| PCU | Programmable Control Unit |
| PCU | Pneumatic Control Unit (pressure sensor) |
| PCU | Plugin Control Unit |
| PCU | Portable Computer Unit |
| PCU | People of Color United |
| PCU | Port Concentrator Unit |
| PCU | Perimeter Control Unit |
| PCU | Personnel Control Unit |
| PCU | Pound-Calorie Unit |
| PCU | Packet Communication Unit (mobile phone technology) |
| PCU | Proportional Counter Unit (astrophysics) |
| PCU | Portable Communication Unit (computer networking) |
| PCU | Portable Checkout Unit |
| PCU | Power/Pressurization Control Unit |
| PCU | Pumped Chiller Unit |
| PCU | Pound-Celsius/Centigrade Unit |
| PCU | Power Changeover Unit |
| PCU | Phased Capability Upgrade (Lockheed Martin; US DoD) |
| PCU | Propulsion Control Unit |