LSE may refer to: Computing LSE (programming language), a computer programming language LSE, Latent sector error, a media assessment measure related to the hard disk drive storage technology Language-Sensitive Editor, a text editor used on Digital Equipment Corporation's VMS operating system Education Lahore School of Economics, a private university in Lahore, Punjab, Pakistan Lincoln Southeast High School, a public government education school located in Lincoln, Nebraska London School of Economics and Political Science, a public research university within the University of London Louvain School of Engineering, faculty of engineering science at the University of Louvain (UCLouvain), Belgium Finance Lahore Stock Exchange, now Pakistan Stock Exchange London Stock Exchange London Stock Exchange Group, the owner group of the London Stock Exchange Transport La Crosse Regional Airport, Wisconsin, United States (IATA code LSE) Luzern–Stans–Engelberg railway line, a mountain railway in Switzerland Other uses Load serving entity, an electricity demand aggregator in the deregulated market. Landing ship, Emergency Repair, a US WW2 Navy ship Least-squares estimation, a statistical technique commonly used in data fitting Lengua de signos española, Spanish Sign Language Logical Sensory Extrovert, a socionics personality type