BAC or Bac may refer to:

• Balochistan Arts Council, in Quetta, Pakistan
• Baryshnikov Arts Center, in Manhattan, New York City
• Battersea Arts Centre, London, England
• Beirut Art Center, Lebanon
• Belger Arts Center, Kansas City, Missouri, US
• Benedicta Arts Center, St. Joseph, Minnesota, US
• Berkeley Art Center, California, US
• Black Arts Council, US
• Brampton Arts Council, Ontario, Canada
• Brooklyn Arts Council, New York City, New York, US

• André Bac (1905–1989), a French cinematographer
• Ferdinand Bac (1859–1952), a German-French cartoonist, artist, and writer
• BAC Films, a French film production and distribution company
• BAC Inc.
• Batman: Arkham City, a 2011 video game
• Big Apple Chorus, New York–based barbershop chorus
• Big Apple Circus
• Boston Area Crusaders, former name of the Boston Crusaders Drum and Bugle Corps
• Brixton Artists Collective, group of artists in London in the 1980s
• Burma Art Club
• Bac Ishii or Baku Ishii (1886–1962), a Japanese dancer and choreographer

• BAC Express Airlines or BAC Aircraft, British cargo airline
• Bahrain Airport Company
• Bangabandhu Aeronautical Centre
• Boeing Airplane Company, the former name of Boeing Commercial Airplanes
• Bristol Aeroplane Company (1920–1956), British aviation company
• British Aircraft Company (1930–1936), British aviation company
• British Aircraft Corporation (1959/1960–1977), British aviation company

• BAC Credomatic, a Central American financial company
• Bank of America, which trades on the New York Stock Exchange under the stock ticker BAC
• Brandenburg African Company
• Breed Automotive Corporation, now known as Joyson Safety Systems
• Briggs Automotive Company, a British car manufacturing company

• Balochistan Agriculture College, Quetta, Pakistan
• Belmont Abbey College, Belmont, North Carolina, US
• Boston Architectural College, Boston, Massachusetts, US
• Botswana Accountancy College, Gaborone, Botswana
• Broughton Anglican College, a school in Menangle, New South Wales, Australia
• Branch Agricultural College, Cedar City, Utah, US
• Bukalasa Agricultural College, Uganda

• Baccalaureate (disambiguation), the name of a number of educational qualifications
• Bangladesh Accreditation Council
• Basic Airborne Course, of the United States Army Airborne School
• British Accreditation Council, a British educational accreditation agency

• Bangladesh Accreditation Council
• Bibliothèque et Archives Canada or Library and Archives Canada, in Ottawa
• Brigada Anticrime, Cape Verde
• Brigade ammunition column
• Brigade anti-criminalité [fr; it], service of the French National Police
• Bureau of Air Commerce
• Bureau of Anti-Corruption, predecessor of the Anti-Corruption Commission in Bangladesh

• BACnet, building automation and control
• .BAC, a filetype used by the RSTS/E timesharing system for compiled BASIC-PLUS files
• Bacterial artificial chromosome, a DNA construct used for transforming and cloning in bacteria
• Basic access control, a protocol used to transmit data contained in a passport equipped with RFID chip
• Bead activated carbon
• Benzalkonium chloride, a type of cationic surfactant
• Biological-activated carbon, used in water treatment
• Blood alcohol content or blood alcohol concentration
• Bronchioloalveolar carcinoma, a type of lung cancer often diagnosed in non-smokers
• HP Business Availability Center, software in HP Business Service Management

• Bać, Rožaje, a village in Montenegro
• Bač, Ilirska Bistrica, a village in Slovenia
• Bač, North Macedonia, a village and former municipality
• Bač, Serbia, a town and municipality in the South Bačka District
  • Bač Fortress
• Bač pri Materiji, a settlement in the municipality of Hrpelje–Kozina, Slovenia
• Báč, a village in Slovakia
• Bâc or Bîc, a Moldovan river

• Bac, Western Isles, or Back, a district and village in Scotland
• Bache railway station (station code: BAC), England
• Baile Átha Cliath or Dublin, the capital city of Ireland
• Basque Autonomous Community, Spain
• La Vall del Bac, village in La Vall de Bianya, Catalonia, Spain
• Rue du Bac, Paris, street in France

• Baç Bridge, bridge in Turkey
• Barnes County Municipal Airport (FAA airport code: BAC), Valley City, North Dakota, US; see List of airports in North Dakota
• Brisbane Administration Centre, Queensland, Australia

• BAC Mirande, a French women's basketball club
• Bank Atlantic Center, an indoor arena in Sunrise, Florida, US
• Badminton Asia Confederation, governing body for badminton in Asia
• Bauru Atlético Clube, a Brazilian association football club
• Birmingham Athletic Club
• Belgrano Athletic Club
• British Athletes Commission
• Bulawayo Athletic Club

• Bač (name)
• Baduy language
• Bangla Congress, an Indian political party
• Basutoland African Congress or Basutoland Congress Party, a Lesotho political party
• Beijing Arbitration Commission
• Born-again Christian
• Britannia Aquatic Club or Britannia Yacht Club, a private social club in Ottawa, Ontario, Canada
• Brotherhood of the Ascended Christ, an Anglican religious order in India
• Budget at completion
• Burton Addiction Centre
• International Union of Bricklayers and Allied Craftworkers, a North American labour union
• Vương Văn Bắc (1927–2011), the last Minister of Foreign Affairs of South Vietnam

• 1,3-Bis(aminomethyl)cyclohexane
• Bač (disambiguation)
• Bacs (disambiguation)
• All pages with titles beginning with BAC
• All pages with titles beginning with Bac
• All pages with titles containing bac
• CBAC (disambiguation)
• Kbac (disambiguation)
• WBAC 1340 AM