SIB

• As Sib, a town in Oman
• Sib, Khuzestan, a village in Khuzestan Province, Iran
• Sibiti Airport (IATA airport code), in the Republic of the Congo
• Sunny Isles Beach, Florida, US

• Sib (anthropology), a group of people recognized by an individual as kin
• Sib RNA, a non-coding sRNA found in E. coli
• Simple biosphere model, used with atmospheric general circulation models
• Self-injurious behaviour, in self-injury

• School of International Business of the ESB Business School, Reutlingen University, Germany
• Scientex Incorporated Berhad, a producer of stretch films, Malaysia
• Securities and Investments Board, UK later the Financial Services Authority
• Sekolah Indonesia Bangkok, Indonesian School
• Sidang Injil Borneo, the Borneo Evangelical Church
• Special Investigation Branch of UK military police
• Special Investigations Branch of the New Zealand Defence Force Military Police
• Student Welfare Organisation in Bergen (Studentsamskipnaden i Bergen, SiB)
• Swiss Institute of Bioinformatics
• Special Investigations Bureau (disambiguation)

• Savings and Investment Bank, a failed bank on the Isle of Man
• South Indian Bank
• Social Investment Business, UK charity

• Service Implementation Bean, a web service Java object
• scale-index-base byte in x86 processor

• Sinar Indonesia Baru, a newspaper in Medan, Indonesia
• Systems in Blue, a German music group
• "S.I.B. (Swelling Itching Brain)", a song from the 1979 Devo album Duty Now for the Future

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