VPI

VPI may refer to:

• Vapor phase infiltration, a synonym for sequential infiltration synthesis
• Velopharyngeal insufficiency, a medical term
• Verilog Procedural Interface, in computer programming
• Vertical Politics Institute, a conservative political action committee
• Vietnam Petroleum Institute
• Virginia Polytechnic Institute and State University (a.k.a. Virginia Tech)
• Virtual path identifier, in computer networking
• Visegrad Patent Institute, a patent organization created by the four Visegrad countries
• Vocational Preference Inventory
• VPI Industries, a manufacturer of phonographs
• VPIphotonics, photonic simulation tool