| PIPA | Pacific Institute of Performing Arts 
| Others |
| PIPA | Parents In Partnership Association
| Others |
| PIPA | Parents In Performing Arts
| Others |
| PIPA | Participatory Impact Pathways Analysis
| Others |
| PIPA | Pato India Pale Ale
| Others |
| PIPA | People In Photo Albums
| Others |
| PIPA | Personal Information Protection Act
| Others |
| PIPA | Personal Injury Proceeding Act
| Others |
| PIPA | Pertexa Inflatable Play Accreditation
| Others |
| PIPA | Pipelines and Informed Planning Alliance
| Others |
| PIPA | Polo Instructors and Players Association
| Others |
| PIPA | Preventing Real Online Threats to Economic Creativity and Theft of Intellectual Property Act (PROTECT IP Act)
| Others |
| PIPA | Productores Independientes de Paraje Altamira
| Others |
| PIPA | Program on International Policy Attitudes
| Others |
| PIPA | Protect Intellectual Property Act
| Others |
| PIPA | Protect Internet Protocal Act
| Others |
| PIPA | Protect Internet Protocol Act
| Others |
| PIPA | Protect Ip Act
| Others |
| PIPA | PROTECTION of INTELLECTUAL PROPERTY ACT
| Others |
| PIPA | Pulse Integrating Pendulous Accelerometer
| Others |
| PIPA | Pulse Integrating Pendulum Accelerometers
| Others |
| PIPA | Pulse Integrating Pendulum Assembly
| Others |
| PIPA | Pulsed Integrating Pendulous Accelerometer
| Others |