LSA

LSA or Lsa is an acronym standing for:

* La Salle Academy, a private, Catholic, all boys high school in New York City.
* Lakshmipat Singhania Academy, a leading group of non profit schools in India.
* Late Stone Age
* Latent semantic analysis
* Latvijas Studentu apvienība
* Law and Society Association
* Law Society of Alberta
* Learn and Serve America
* Licenciate of the Society of Apothecaries
* Lichen sclerosus et atrophicus ("Skin disease")
* Light-sport aircraft
* Lighting&Sound America, an entertainment technology magazine published by PLASA Media Inc.
* Linguistic Society of America
* Link-state advertisement, communication mechanism of the OSPF routing protocol for IP
* 'Lobe Separation Angle', see cam
* Local Security Authority, the centre of the Windows NT security subsystem (lsass.exe).
* Local Spiritual Assembly, an administrative body of the Bahá'í Faith.
* Logistics Support Analysis, a support planning methodology.
* Logistics Support Area, a large military depot.
* London Small Arms Co. Ltd, an English gun-making firm between 1866-1935.
* Lone Scouts of America, an independent Scouting organization that merged into the Boy Scouts of America
* Lutheran Services in America, the largest network of human service organizations in the United States.
* College of Literature, Science, and the Arts at the University of Michigan
* Lysergic acid amide (ergine), a compound closely related to LSD
* Lsa, the abbreviation for the orchid genus "Luisia"