SIB

SIB can refer to:

* As Sib, a town in Oman
* File format (and file extension) for files created with Sibelius.
* School of International Business, the business school of the Reutlingen University in Germany
* Scientex Incorporated Berhad, the largest producer of stretch films in Asia.
* Securities and Investments Board, a UK regulator now known as the Financial Services Authority.
* Self-injurious behavior
* Service Integration Bus, supports applications using message-based and service-oriented architectures.
* Sibb, a genealogical term.
* Sib (horse), played Gondorian and Rohan horses in The Return of the King.
* Sibling
* The Simple Biosphere model used with atmospheric general circulation models.
* Special Investigation Branch, the detective branches of all four British military police arms.
* Strong Island Boys, a late 1980's-early 90's Long Island street gang
* Student Welfare Organisation in Bergen or "Studentsamskipnaden i Bergen"
* Studentenvereniging voor Internationale Betrekkingen, the acronym in Dutch of the "Dutch United Nations Student Association" (DUNSA)
* Swiss Institute of Bioinformatics, a scientific research institute
* sib (anthropology), a group of people recognized by an individual as kin.
* Scale-Index-Base byte used in x86 instruction encoding.