LSR

LSR may refer to:

Computing

 * Label switch router, a type of router located in the middle of an MPLS network
 * Lego Stunt Rally, a video game
 * Link-state routing protocol, one of the two main classes of routing protocols used in packet switching networks
 * Linux Screen Reader, a free and open source assistive technology of the GNOME desktop environment
 * Logical shift right, a type of logical shift operator used in some computer languages
 * Loose Source Routing, an IP routing option used for mobility in IP networks
 * Link state request, a type of OSPF protocol message

Organizations

 * LSR Group, one of Russia's largest construction firms
 * Lady Shri Ram College for Women, a university in Delhi, India
 * League for Socialist Reconstruction, a DeLeonist political organization in the United States
 * League for Social Reconstruction, a socialist think-tank in Canada which ran from 1931 to 1942
 * Leeds Student Radio, a student radio station based in Leeds
 * Liberdade, Socialismo e Revolução, a Brazilian socialist organization
 * Life Sciences Research, the U.S. incorporation of Huntingdon Life Sciences
 * LifeRing Secular Recovery, an addiction recovery support group
 * Freedom of Russia Legion (Legion "Svoboda Rossii")

Sciences

 * Local standard of rest, a frame of reference for motion of matter in the Milky Way galaxy proximate to the Sun
 * Land speed record, the record for highest speed by a land vehicle
 * Liquid silicone rubber, a form of silicone rubber
 * Lipolysis-stimulated lipoprotein receptor

Other

 * LSR (sniper rifle), a Pakistani sniper rifle
 * Local storm report, a product issued by the U.S. National Weather Service
 * A type of equipment on the Israel television show HaShminiya