BC most often refers to:
Before Christ, a calendar era based on the traditionally reckoned year of the birth of Jesus of Nazareth
British Columbia, the westernmost province of Canada
Baja California, a state of Mexico
BC may also refer to:
Arts and entertainment
"B.C.", a song by Sparks from the 1974 album Propaganda
B.C. (comic strip) by Johnny Hart, and one of its characters
BC (video game) by Lionhead Studios
BC The Archaeology of the Bible Lands, a BBC television series
Bullet Club, a professional wrestling stable
Businesses and organizations
Basilian Chouerite Order of Saint John the Baptist, an order of the Greek Catholic Church
BC Card, a Korean credit card company
Bella Center, a conference center in Copenhagen, Denmark
Brasseries du Cameroun, a brewery in Cameroon (also known as SABC)
Brunswick Corporation (NYSE ticker symbol BC)
Education
United States
Bakersfield College, a college in Bakersfield, California
Bellevue College, a college in Bellevue, Washington
Benedictine College, a college in Atchison, Kansas
Benedictine Military School, a high school in Savannah, Georgia
Bergen Catholic High School, a high school in Oradell, New Jersey
Boston College, a university in Chestnut Hill, Massachusetts
Boston College Eagles, its athletic teams
Brazosport College, a college in Lake Jackson, Texas
Broward College, a college in Fort Lauderdale, Florida
Worldwide
Baccalaureus or bc, a Bachelor's degree in the Netherlands
Baghdad College, a high school in Baghdad, Iraq
British Council
Science and technology
Backcrossing, a crossing of a hybrid with one of its parents, or a genetically similar individual
Backward compatibility, the ability of new software to work similarly to its predecessor
Ballistic coefficient, a measure of air drag on a projectile
Base curve radius, a parameter of a contact lens
Battle command, a military discipline
Bayonet cap, a standard light bulb connection
bc (programming language), an arbitrary-precision calculator language
Black carbon, a carbonaceous component of soot
Bliss bibliographic classification, a library cataloguing system
× Brassocattleya or Bc., an orchid genus
Buoyancy compensator (diving), a piece of scuba diving equipment
Transportation
NZR BC class, a type of steam locomotive
Skymark Airlines (IATA airline code BC)
Other uses
Bullcrap, a phrase denoting something worthless
"B.C.", nickname of Burr Chamberlain (1877–1933), American football player and coach
Baguio, a city in the Philippines, locally abbreviated as "B.C."
BC Powder, a brand of pain reliever
BookCrossing, a website that encourages leaving books in public places to be found by others
See also
BC Cygni, a red supergiant star that is one of the largest stars
Belaruskaja Čyhunka (BCh), the national railway company of Belarus
Blind carbon copy (Bcc:), the practice of sending an e-mail to multiple recipients without disclosing the complete list of recipients