Bo

Bo or BO may refer to

Film, television, and theatre

 * Box office, where tickets to an event are sold, and by extension, the amount of business a production receives
 * BA:BO, 2008 South Korean film
 * Bo (film), a Belgian film starring Ella-June Henrard and directed by Hans Herbots

Gaming

 * Bō: Path of the Teal Lotus, a platform game
 * Call of Duty: Black Ops, a first-person shooter video game
 * Blood Omen: Legacy of Kain, first in the Legacy of Kain video game series

Music

 * Bo (instrument), a Chinese cymbal
 * Bo, a Greek rapper.

Religion

 * Bo or Bodhi Tree
 * Bo (parsha), fifteenth weekly Torah reading

Ethnic groups

 * Bo people (China), a nearly extinct minority population in Southern China
 * Bo people of Laos, see List of ethnic groups in Laos
 * Bo people (Andaman), a recently extinct group in the Andaman Islands

Human names

 * Bo (given name), name origin, plus a list of people and fictional characters with the name or nickname
 * Bo (surname), name origin, plus a list of people with the surname
 * Bo (Chinese surname), Chinese family names
 * Bő (genus), Hungarian medieval noble clan
 * Bø (disambiguation), which includes several people with the surname

Biology and medicine

 * Bacterial overgrowth, a medical disorder of malabsorption
 * Bowel obstruction
 * Body odor or B.O.
 * Bronchiolitis obliterans
 * BO strain of the Caenorhabditis elegans var. Bergerac model worm
 * Ficus religiosa, a.k.a. Bo-Tree, a species of Asian fig

Mathematics, chemistry and physics

 * $$\operatorname{BO}(n)$$, Classifying space for orthogonal group
 * $$\operatorname{BO}$$, Classifying space for infinite orthogonal group
 * In chemistry and physics, the Born–Oppenheimer approximation

Places

 * Belarus, obsolete NATO and FIPS country codes
 * Bő, Hungary, a village
 * Bø (disambiguation), various places in Norway
 * Bo, Chanthaburi, Thailand
 * Bo, Hòa Bình, Vietnam
 * Bo, Sierra Leone, a city
 * Bo, Yaba, Burkina Faso
 * Le Bô, a commune in the Calvados departement, France
 * Palazzo Bo, or "Il Bo", the historic seat of the University of Padua in Italy
 * Bo (, Bó), the original capital of the Tang King who founded China's Shang Dynasty, and its accurate location is still disputed. Two strong candidates are Yanshi Shang City and Zhengzhou Shang City.

Transportation

 * Baltimore and Ohio Railroad (reporting mark BO)
 * Bouraq Indonesia Airlines (IATA airline code BO)
 * BO, UIC classification for the railroad locomotive wheel arrangement 0-4-0, in the Whyte notation

Other uses

 * Bó (bank), a banking brand in the United Kingdom
 * Bō, or east Asian quarterstaff, a staff weapon used in the martial art Bōjutsu
 * Bō, a Japanese honorific suffix
 * Bo (dog) (2008–2021), a pet belonging to U.S. President Barack Obama
 * Bo (title), a Chinese title typically translated as "count"
 * Bo Bedre, Danish lifestyle and interior design magazine
 * Bojagi or bo, a Korean wrapping cloth
 * Bojangles (disambiguation)
 * Bo School, a secondary school in Bo, Sierra Leone
 * Back Orifice, remote administration software
 * Barrel of Oil, sometimes used in place of bbl
 * Beneficial owner, in property law
 * Biarritz Olympique, a French rugby union club
 * Business Objects (company), an enterprise software company
 * Bolivia (ISO 3166-1 country code)
 * .bo, Internet country code top-level domain (ccTLD) for Bolivia
 * Bo language (disambiguation)
 * "bo", Standard Tibetan ISO 639-1 language code