The acronym "IBU" can refer to several things depending on the context:
- International Biathlon Union (IBU) - An international non-governmental organization that unites 63 national biathlon federations. It organizes the Biathlon World Championships, World Cup, and other continental and junior biathlon competitions. It was founded on July 2, 1993, and has its headquarters near Salzburg, Austria.
- International Bitterness Units (IBU) - A measurement unit for the bitterness of beer. One IBU corresponds to 1 mg of iso-alpha acids from hops in one liter of beer. The perceived bitterness depends on the IBU level and the beer's malt extract content.
- International Business University (IBU) in Canada - A university offering personalized and industry-focused business education with flexible undergraduate and graduate programs.
- International Burch University (IBU) - An entrepreneurial university offering diverse academic programs and scholarships, with faculties in engineering, natural sciences, economics, social sciences, education, and humanities.
The most common usage depends on the context, but these are the primary recognized meanings of "IBU" as of now. If a specific context is given, the relevant explanation can be expanded.
