RSB
# RSB

RSB may refer to:

* Rajapur Saraswat Brahmins, an Indian Brahmin community
* Rashid School For Boys, Dubai
* Rebecca Sean Borgstrom, former name of role-playing game author Jenna Moran
* Revolutionary Socialist League (Germany) (Revolutionär Sozialistischer Bund, RSB)
* Rigi-Scheidegg-Bahn, a former mountain railway in Switzerland
* Riverside School Board, Quebec, Canada
* The reporting mark for the Rochester Subway
* Roundtable on Sustainable Biofuels
* Royal Society for the Blind, a not-for-profit organisation servicing blind and visually impaired people in South Australia
* Royal Society of Biology, a learned society and professional association in the United Kingdom
* The former Swedish Red Pied or Rödbrokig Svensk Boskap breed of cattle
