LPE may refer to: Lambda Pi Eta, a collegiate honor society LAN Perú, an airline Lapeer (Amtrak station), a train station LimeWire Pirate Edition, file sharing software Lingenfelter Performance Engineering, a car modifier Liquid phase epitaxy, a semiconductor manufacturing process Liquid phase exfoliation, a method of processing chemical solutions Lone pair electrons, an atomic valence structure Local privilege escalation, a type of software exploit London Press Exchange, an advertising agency Lysophosphatidylethanolamine, a type of organic chemical Longitude of the periapsis, a dimension of orbit Lepki language, of Western New Guinea