| P&ID | Piping & Instrumentation Diagram 
| Others |
| P&ID | Piping and Instrumentation Diagram
| Others |
| PID | Nassau Paradise Island, Bahamas
| Others |
| PID | Packet Id
| Others |
| PID | Packet Identifier
| Others |
| PID | Packet Identifier Digital
| Others |
| PID | Pain Intensity Differences
| Others |
| PID | Painted Internal Diameter
| Others |
| PID | Parallel Independent Decoding
| Others |
| PID | Parameter Id
| Others |
| PID | Parameter Identication Data
| Others |
| PID | Parameter IDentification
| Others |
| PID | Partners In Development
| Others |
| PID | Passenger Information Display
| Others |
| PID | Past International Director
| Others |
| PID | Pathway Interaction Database
| Others |
| PID | patient identification
| Others |
| PID | patient identifier
| Others |
| PID | Payload Insertion Device
| Others |
| PID | Pelvic Inflammatory Disease
| Others |
| PID | Performance Information Data
| Others |
| PID | Persistent Identifier
| Others |
| PID | Person Identifiable Data
| Others |
| PID | Person Identification Database
| Others |
| PID | Personal Id
| Others |
| PID | Personal Identity Digit
| Others |
| PID | Personal Infotainment Device
| Others |
| PID | Personal Injury Defense
| Others |
| PID | Personally Identifiable Data
| Others |
| PID | Photo Ionization Detection
| Others |
| PID | Photo Ionization Detector
| Others |
| PID | Photoionization detector
| Others |
| PID | Physical Id
| Others |
| PID | Physical Interface Device
| Others |
| PID | Plan Identification Number
| Others |
| PID | Planned Industrial District
| Others |
| PID | Plant Industries Division
| Others |
| PID | Plastics Information Direct
| Others |
| PID | Player Id
| Others |
| PID | Poor Innocent Dragon
| Others |
| PID | Porsche Innodrive
| Others |
| PID | Ports Is Deficient
| Others |
| PID | Positioning Indicating Device
| Others |
| PID | Positive Identification
| Others |
| PID | Potential Induced Degradation
| Others |
| PID | Poughkeepsie Inflamatory Disease
| Others |
| PID | Pre Injury Duties
| Others |
| PID | Press Information Department
| Others |
| PID | Primary immune deficiencies
| Others |
| PID | Primary Immune Deficiency
| Others |
| PID | Primary Immunodeficiency Disease
| Others |
| PID | Primary immunodeficiency diseases
| Others |
| PID | Prime Item Development
| Others |
| PID | Principal Ideal Domain
| Others |
| PID | Process ID
| Others |
| PID | Process ID file (Unix)
| Others |
| PID | Process Identification Document
| Others |
| PID | Process IDentifier
| Others |
| PID | Process Innovation Deployment
| Others |
| PID | Product ID
| Others |
| PID | Product IDentifier
| Others |
| PID | Product IDentity
| Others |
| PID | Product Installation Diagram
| Others |
| PID | Products, Innovation, Design
| Others |
| PID | Profound Intellectual Disability
| Others |
| PID | Program Information Document
| Others |
| PID | Program Integration Directorate
| Others |
| PID | Programmable Interrupt Device
| Others |
| PID | Programmed Integrated Device
| Others |
| PID | Project Implementation Division
| Others |
| PID | Project Information Document
| Others |
| PID | Project Initiation Document
| Others |
| PID | Project Inspection Department
| Others |
| PID | Prolapsed Intervertebral Disc
| Others |
| PID | Proliferative Intraocular Disorder
| Others |
| PID | Property Improvement District
| Others |
| PID | Property Income Distribution
| Others |
| PID | Proportional Integral and Derivate
| Others |
| PID | Proportional Integral and Derivative
| Others |
| PID | Proportional Integral Derivative
| Others |
| PID | Proportional Integral Differential
| Others |
| PID | Proportional Integrator Derivator
| Others |
| PID | Proportional Intergral Derivative
| Others |
| PID | Proportional-Integral-Derivative
| Others |
| PID | Proprietary Information Disclosure
| Others |
| PID | Protection Id
| Others |
| PID | Protocol Id
| Others |
| PID | Provider Identifier
| Others |
| PID | Public Id
| Others |
| PID | Public Improvement Districts
| Others |
| PID | Public Interest Design
| Others |
| PID | Public Interest Disclosure
| Others |