IBD

IBD may refer to:

In business:

• Investment Banking Division, a department of an investment bank
• Independent Bicycle Dealers, a small bicycle business
• Investor's Business Daily, a national newspaper in the United States

In science and medicine:

• Identity by descent, alleles that are identical because they descended directly from the same ancestral allele
• Inclusion body disease, a destructive virus occurring in boid snakes
• Infectious bursal disease, a poultry disease causing immunosuppression
• Inflammatory bowel disease, a group of inflammatory conditions of the large and small intestines
• Inverse beta decay, a nuclear reaction commonly used in neutrino detectors
• Iodobenzene dichloride, a reagent used in organic chemistry
• Ion beam deposition

Other uses:

• Institute of Brewing and Distilling, an international industry trade association
• International Beer Day, an August 5 celebration