LSP may refer to: Governance and politics Left Socialist Party (Belgium), the Belgian section of the "Committee for a Workers' International" Liberal State Party, a former Dutch political party Local strategic partnership, a government-inspired body intended to get local government and other bodies operating in its area working together Louisiana State Penitentiary Louisiana State Police Science and technology Landing Ship, Personnel, World war 2 type ship Language for specific purposes, description of a linguistics field Laser shock peening, a surface engineering process used to impart beneficial residual stresses in materials Lightest Supersymmetric Particle, generic name given to the lightest of the additional hypothetical particles found in supersymmetric models Line spectral pairs (or line spectrum pairs), a kind of digital representation of a filter, used in speech and sound compression Linguistic Society of the Philippines Localized surface plasmon, a type of surface plasmon excitation in nanoparticles Lysergic acid 3-pentyl amide, a psychedelic analogue of LSD with slightly lower binding affinity. Computing Label-switched path, path through an MPLS network Language Server Protocol, a JSON protocol for sending requests to language tools to aid a text editor, e.g., for code refactoring Layered Service Provider, a part of the protocol stack on the Microsoft Windows operating systems Link state packet, packet of information generated by a network router Liskov substitution principle, object-oriented programming principle Logical Standby Process, a system in Oracle Data Guard data-replication Space Launch Services Program, a NASA program that organizes the launch of spacecraft Launch service provider, a company which launches spacecraft Other uses The Last Shadow Puppets, a British musical project by Alex Turner, Miles Kane and James Ford Lee Shu Pui Hall, the largest student-hostel in Chung Chi College at the Chinese University of Hong Kong Lego Serious Play, consultant service Logistics service provider, outsourcing of logistics services to a third party or 3PL London School of Philosophy, adult education college in London Lumpy Space Princess, a character on the 2010 animated series Adventure Time Josefa Camejo International Airport IATA code