Organizations
- 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 1931–1942
- Leeds Student Radio, a student radio station based in Leeds
- Liberdade, Socialismo e Revolução, a Brazilian socialist organisation, affiliated to the CWI
- LifeRing Secular Recovery, an addiction recovery support group
- Life Sciences Research Inc., one of the world's leading Contract Research Organizations (CROs)
- LSR Group, one of Russia's largest construction firms, formerly known as Lenstroyrekonstruktsiya
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