GSB

GSB may refer to:

Education

 * German School Brooklyn
 * Gill St. Bernard's School, in Gladstone, New Jersey
 * Government School, Bidhwan, in India
 * Stanford Graduate School of Business
 * University of Chicago Graduate School of Business (now known as Chicago Booth)

Science

 * Geological Survey of Bangladesh
 * Geological Survey of Belgium
 * Green sulfur bacteria

Other

 * Gaud Saraswat Brahmin, an Indian Brahmin community
 * Gisborne railway station, Australia
 * Giusfredi–Bianchi, a cycling team
 * Gold Star for Bravery, an award of South Africa
 * Government Savings Bank (Thailand)
 * Granada Sky Broadcasting, a British television company
 * Grivel Scarpa Binding, in mountaineering
 * Guiding and Scouting in Belgium
 * Greyhound Stud Book, national registration association for British Bred greyhounds
 * Gençlik ve Spor Bakanlığı, the Turkish Ministry of Youth and Sports