IRB may refer to:
Organizations
*
Immigration and Refugee Board of Canada, a Canadian administrative tribunal
*
Indian Reserve Battalion
In India, the police forces of the states and union territories are responsible for law enforcement in the states and union territories.
History
The Police Act of 1861 established the principles of organization for police forces in India and, w ...
, a special unit of the Indian Police Force
* ''Institut Ruđer Bošković'' (Ruđer Bošković Institute), a Croatian research institute
* Institutional review board, a committee to monitor research involving humans
* ''Instituto de Resseguros do Brasil'', a Brazilian reinsurance company
* ''Instituto Ricardo Brennand'', a museum in Recife, Brazil
* International Rugby Board, the former name of World Rugby, the governing board of rugby union
* IRB Infrastructure, an Indian road infrastructure company
* Irish Republican Brotherhood, an Irish secret revolutionary society of the 19th and early 20th centuries
Technology
* Interactive Ruby Shell, a shell for programming in Ruby
* ASEA IRB, a line of industrial robots
Other
* Inflatable rescue boat, a rubber boat with an outboard motor used in surf lifesaving
** IRB racing
* Internal ratings-based approach (credit risk), a method for estimating bank capital requirements
* Internal Revenue Bulletin, a weekly publication of the U.S. Internal Revenue Service
* Internal ratings-based approach (credit risk), Internal Ratings Based approach, a method of assessing Bank capital requirements
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