LSO

LSO may refer to:

Computing

 * Large segment offload, a technology for reducing CPU overhead
 * Local shared object, an HTTP cookie-like data entity used by Adobe Flash Player
 * Location search optimization, a web optimization method

Organisations

 * LSO (company), a delivery company formerly known as Lonestar Overnight
 * Law Society of Ontario, the regulatory body for lawyers in Ontario, Canada (formerly called the Law Society of Upper Canada)
 * Limburg Symphony Orchestra or Limburgs Symfonie Orkest, a Dutch orchestra
 * London School of Osteopathy, an osteopathic school in London, England
 * London Symphony Orchestra, a United Kingdom symphony orchestra

Other uses

 * Landing signal officer or landing safety officer on an aircraft carrier
 * Lateral superior olive, an auditory nucleus in the brainstem
 * Lutetium orthosilicate, an inorganic scintillator
 * Landing Signal Officer, a naval aviator
 * Lesotho (ISO 3166-1 code)
 * Linguistic Sign-Off