IBG

IBG may refer to:


 * Idaho Botanical Garden
 * Indiana Botanic Gardens
 * Institute for Behavioral Genetics
 * Intel Boot Guard, a security mechanism implemented in some Intel processors
 * Interactive Brokers Group, an automated electronic market maker and broker
 * Investment Bank of Greece
 * Interbank GIRO, a mechanism of money transfer
 * The International Brewers Guild, which merged with the Institute of Brewing to form the Institute of Brewing and Distilling
 * The Institute of British Geographers, now part of the Royal Geographical Society