ISB

ISB is an acronym for each of the following:

In music:
* The International Staff Band of the Salvation Army
* Incredible String Band, a British musical group of the late 1960s
* The International Submarine Band, a 1960s country-rock group featuring Gram Parsons
* International Society of Bassists, an international society dedicated to the double bass

In education:
* Indian School of Business, an international business school located in Hyderabad, India
* International School of Beaverton, an international school located in Aloha, Oregon, USA
* International School of Boston, an international school located in Cambridge, Massachusetts, United States of America
* International School of Brussels, an international school located in Brussels, Belgium
* International School Bangkok, an international school located in Nonthaburi, Thailand; the school used to be located in Bangkok
* International School Basel, an international school located in Basel, Switzerland.
* International School of Beijing, an international school located in Beijing, China
* Institute for Systems Biology, a non-profit research institute dedicated to the study and application of systems biology
* International School of Bergen, an international school located in Bergen, Norway

In Islam:
* Islamic Society of Boston, a muslim community center and mosque based in Boston, Massachusetts, United States of America
* Islamic Society of Baltimore, a tax exempt, non-profit religious organization registered in the state of Maryland, United States of America
* Islamic Society of Britain, a national voluntary organisation

Generally:
* independent sideband, a radio modulation mode used in some AM radio transmissions
* In-store bakery, a section of a shop or store which bakes various bread and cake products
* Invest to Save Budget, UK government scheme launched in 1998-99 "to support projects intended to foster changes in departments' methods of working so as to promote successful innovation and deliver better public services"
* Islamabad International Airport (IATA code "ISB"), also known as Chaklala Airbase, an airport located in Rawalpindi, Pakistan

In movies:
* Imperial Security Bureau, a fictional organization in the "Star Wars" universe