IRB

IRB may refer to:

Organizations

 * Immigration and Refugee Board of Canada, a Canadian administrative tribunal
 * Indian Reserve Battalion, 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, a method of assessing Bank capital requirements
 * Ian Rank-Broadley, British sculptor and designer of the fourth coinage portrait of Elizabeth II
 * Indian Rocks Beach, a city in Pinellas County, Florida