| Acronym | Definition |
|---|
| PIU➣Push It Up |
| PIU➣Project in Use (Italian professional network) |
| PIU➣Pump It Up (dance simulation game series) |
| PIU➣Project Implementation Unit |
| PIU➣Praktik i Udlandet (Danish: Internship Abroad) |
| PIU➣Performance and Innovation Unit (UK) |
| PIU➣Processor Identification Utility |
| PIU➣Percent Interstate Usage |
| PIU➣Path Information Unit |
| PIU➣Petersen International Underwriters (insurance; Valencia, CA) |
| PIU➣Professional Issues Updates (accounting) |
| PIU➣Peace and International Understanding |
| PIU➣Programme Implementation Unit |
| PIU➣Problematic Internet Use (psychology) |
| PIU➣Power Interface Unit |
| PIU➣Public Inquiry Unit (California) |
| PIU➣Photographic Interpretation Unit (US Navy) |
| PIU➣Public Interest Unit (UK) |
| PIU➣Programmable Interface Unit |
| PIU➣Payload Interface Unit |
| PIU➣PCM Interface Unit (Cisco) |
| PIU➣Peripheral Interface Unit |
| PIU➣Particle Instrumentation Unit (US EPA Particle Center) |
| PIU➣Protocol Interface Unit |
| PIU➣Protection Interface Unit (Intel Corporation) |
| PIU➣Port Interface Unit |
| PIU➣Pylon Interface Unit |