LSN

LSN may refer to:


 * Large-scale NAT in computer networking
 * Law Society of Nunavut
 * Learning and Skills Network, a former UK organisation
 * Lenguaje de Signos Nicaragüense, Nicaraguan Sign Language
 * Livingston North railway station, Scotland; National Rail station code
 * Log sequence number in a transaction log
 * London News Network (also known as "London Sports Network/LSN"), defunct UK television production company
 * Los Banos Municipal Airport, California, US, IATA code