IRB

IRB may refer to:

in organizations:

• International Rugby Board, the governing board of rugby union
• Irish Republican Brotherhood, an Irish secret revolutionary society of the 19th and early 20th centuries
• Institutional review board, a committee to monitor research involving humans
• Immigration and Refugee Board of Canada, a Canadian administrative tribunal
• Ruđer Bošković Institute (Croatian: Institut Ruđer Bošković), a Croatian research institute
• IRB Infrastructure, an Indian road infrastructure company
• Instituto de Resseguros do Brasil, a Brazilian company of reinsurance
• Instituto Ricardo Brennand, a museum in Recife, Brazil

in technology:

• Interactive Ruby Shell, a shell for programming in Ruby
• ASEA IRB, an industrial robot

Other:

• Inflatable Rescue Boat
• Ian Rank-Broadley, a British sculptor
• Internal Ratings-Based Approach (Credit Risk), an approach to estimate capital requirements by banks under the Basel II guidelines