| LPI | Lamborghini Piattaforma Inerziale 
| Others |
| LPI | Laminated Products Incorporated
| Others |
| LPI | Language Proficiency Index
| Others |
| LPI | Language Proficiency Interview
| Others |
| LPI | Laps Per Incident
| Others |
| LPI | Laredo Petroleum Inc
| Others |
| LPI | Laser Peripheral Iridotomy
| Others |
| LPI | Laser Pros International
| Others |
| LPI | Last Paid Installment
| Others |
| LPI | last person in
| Others |
| LPI | Late Payment Interest
| Others |
| LPI | Lawford Pontoon And Irving
| Others |
| LPI | Lawrence Productions Inc
| Others |
| LPI | Layer Protocol Implementation
| Others |
| LPI | Leadership Practices Inventory
| Others |
| LPI | Leaf Position Index
| Others |
| LPI | League of Paranormal Investigators
| Others |
| LPI | Learning Programs International
| Others |
| LPI | Leonard Personality Inventory
| Others |
| LPI | License Plate Inventory
| Others |
| LPI | Licensed Plumbing Inspector
| Others |
| LPI | Licensed Private Investigator
| Others |
| LPI | Light Particle Irreducibility
| Others |
| LPI | Light Prescriptions Innovators
| Others |
| LPI | Lightning Protection Institute
| Others |
| LPI | Lindoping, Sweden
| Others |
| LPI | Line Printer Interface
| Others |
| LPI | Lines Per Inch
| Others |
| LPI | Linus Pauling Institute
| Others |
| LPI | Linux Professional Institute Linux Professional Institute
| Others |
| LPI | Liquefied Petroleum Injection
| Others |
| LPI | Liquid Phase Injection
| Others |
| LPI | Liquid Photo Image
| Others |
| LPI | Liquid Propane Injection
| Others |
| LPI | Liturgical Publications Inc
| Others |
| LPI | Logiciels Potentiellement Indesirables
| Others |
| LPI | Logistics Performance Index
| Others |
| LPI | Longitudinal Posterior Ibrido
| Others |
| LPI | Longitudinale Posteriore Ibrido
| Others |
| LPI | Low Power Interference
| Others |
| LPI | Low Pressure Injection
| Others |
| LPI | Low Probability of Intercept
| Others |
| LPI | Low-Pressure Isolation
| Others |
| LPI | Lunar and Planetary Institute
| Others |
| LPI | Lunar Planetary Imager
| Others |