• BIS (band), or Believe in Style, a Japanese pop punk band
• BIS monitor or bispectral index, to assess the depth of anaesthesia
• BIS Records, a Scandinavian record label focusing on classical works
• Bachelor of Independent Studies, an undergraduate degree
• Bachelor of Integrated Studies, an undergraduate degree
• Bangladesh International School
• Bangladesh International School Dammam
• Bank for International Settlements International Organization for the cooperation of Central Banks
• Barratt Impulsivity Scale, a self-administered test to measure impulsivity
• Benevolent Irish Society
• Best in Show, the highest-placing in a conformation dog show, cat show, or other show or exposition
• Bezpečnostní informační služba, or the Security Information Service, the Czech intelligence agency
• Bislama language (ISO 639 alpha-3 code bis)
• Bismarck Municipal Airport (IATA code BIS)
• BlackBerry Internet Service
• Bohemia Interactive Studio
• Brisbane Independent School
• British Interlingua Society, a society that promotes Interlingua in the UK
• British International School
• British Interplanetary Society, the oldest space advocacy society
• Bureau of Indian Standards
• Bureau of Industry and Security
• Burlingame Intermediate School, a middle school in Burlingame, California
• Business Information Server, a new name for the Unisys MAPPER product
• Business Information Systems, a popular university degree course.
• Boot Integrity Services, a feature described in the Preboot Execution Environment specifications

Bis may refer to:

• In Latin, it means "twice" or "a second time". This is the origin of most of the following uses. This, in turn, may be derived from Etruscan.
• Bis, a musical term and a little-used Interlingua word meaning "encore", "again", or "twice" (see Musical terminology#B).
• Bis-, a prefix meaning "two" in some contexts of chemical nomenclature
• bis, a suffix meaning "second version" (revision) of a standard (like the "V.32 bis" modem standard)
• Bis or bi's, plurals of bi, short for bisexual
• Bis (band), a Scottish pop band
• Bis (magazine), a high-teens' magazine published by Kobunsha of Japan
• bis - in Spanish and French cities, an address (street number) followed by "bis" refers to a second dwelling on the same street but located behind or aside the dwelling originally carrying that street number
• The 14-bis was an early fixed-wing aircraft by Alberto Santos-Dumont. It was derived from his Number 14 airship.

See also

• Ter