Bart may refer to:
As a given name Bart is a diminutive of Bartholomew and may refer to:

• Bart Aernouts, Belgian professional cyclist
• Bart Andrus, American professional football coach and former collegiate player
• Bart Arens, Dutch radio DJ
• Bart Bassett, Australian politician
• Bart Baxter, American poet
• Bart the Bear (1977-2000), an Alaskan Kodiak bear who appeared in many Hollywood films
• Bart the Bear 2 (aka "Little Bart") (born 2000), an Alaskan brown bear who appears in films and television and was named after the original "Bart the Bear"
• Bart Becht, Dutch businessman
• Bart Berman (born 1938), Dutch-Israeli pianist and composer
• Bart Biemans, Belgian professional footballer
• Bart Bok (1906–1983), Dutch-American astronomer
• Bart Bongers, former Dutch water polo player
• Bart Bradley (1930-2006), Canadian ice hockey centre
• Bart Braverman, American actor
• Bart Brentjens (born 1968), Dutch cyclist
• Bart Bryant, American professional golfer
• Bart Bull, American writer, reporter, author, columnist, and critic
• Bart Bunting, Australian blind Paralympic alpine skier
• Bart Burns (1918-2007), American supporting actor
• Bart Buysse, Belgian footballer
• Bart Cambré, Belgian organizational theorist, Associate Professor of Business Research Methods and Research director at the Antwerp Management School, and consultant
• Bart Campolo, American pastor, speaker, and writer--and Tony Campolo's son
• Bart Cantz (1860–1943), American Major League Baseball catcher
• Bart Carlier, former Dutch football player
• Bart Carlton, American standout college basketball player at Ada Teachers College (later named East Central University) in Ada, Oklahoma, during the early 1930s
• Bart Claessen, Dutch trance music DJ
• Bart Conner, American Olympic gymnast
• Bart Cummings, Australian racehorse trainer
• Bart Dalton, Crouch & Ramey LLP lawyer in Dallas, Texas, and Roman Polanski's U.S.-based attorney
• Bart Davis, Republican Idaho Senator representing the 33rd District (Idaho Falls)
• Bart De Clercq, Belgian professional road bicycle racer for the Lotto-Belisol team
• Bart Decrem, Belgian-born Silicon Valley entrepreneur
• Bart Deelkens, Belgian football goalkeeper
• Bart De Wever (born 1970), Flemish politician
• Bart Dockx (born 1981), Belgian cyclist
• Bart D. Ehrman, American New Testament scholar
• Bart de Graaff (1967–2002), Dutch television personality
• Bart de Liefde, Dutch politician and field hockey umpire
• Bart de Ligt (1883—1938), Dutch anarcho-pacifist and antimilitarist
• Bart DeLorenzo, American Los Angeles-based theater director and producer
• Bart Dockx, former Belgian professional road bicycle racer
• Bart Dodson, American paralympic athlete
• Bart Dorsa, American artist, photographer, film-maker
• Bart D. Ehrman, American New Testament scholar, and the current James A. Gray Distinguished Religious Studies Professor at the North Carolina Chapel Hill University
• Bart Evans, former American Major League Baseball pitcher
• Bart Evans (polo), American polo player
• Bart Exposito, American Los Angeles-based artist
• Bart Farley, retired American soccer goalkeeper
• Bart Fletcher, American actor best known for his role in the 2008 cult sci-fi/ horror hit One-Eyed Monster
• Bart Forbes, American painter and illustrator
• Bart Goor (born 1973), Belgian soccer player
• Bart Gordon, lawyer and former Tennessee 6th congressional district U.S. Representative
• Bart Laeremans (born 1966), Belgian politician
• Bart Preneel, Belgian scientist
• Bart Scott (born 1980), American Football player for the New York Jets
• Bart Starr (born 1934), American Football player and coach
• Bart Sibrel, American conspiracy theory film maker
• Bart Somers (born 1964), Belgian politician
• Bart Staes (born 1958), Belgian politician
• Bart Stupak (born 1952), Polish-American politician
• Bart Veldkamp (born 1967), Dutch speed skater
• Bart Voskamp (born 1968), Dutch cyclist
• Bart Wellens (born 1978), Belgian cyclo-cross cyclist
• Bart Wenrich, American television producer
• Bart Whitaker, (died 2007), man who attempted to murder his family to cover up a fake college graduation whose actions were described in the book Murder by Family
• Bart Zoet (1942–1992), Dutch cyclist
• Bartholomew Roberts, an 18th-century pirate sometimes called Black Bart
• Black Bart (outlaw) the slang name given for Charles Earl Bowles an outlaw in the American west of the mid 1800s

A baronet ( or ; abbreviated "Bart" or "Bt") or the rare female equivalent, a baronetess (; abbreviation "Btss"), is the holder of a baronetcy, a hereditary title awarded by the British Crown. The practice of awarding baronetcies was originally introduced in England in the 14th century and was used by James I of England in 1611 in order to raise funds.

Bay Area Rapid Transit (BART) is a rapid transit system serving the San Francisco Bay Area. The heavy-rail public transit and subway system connects San Francisco with cities in the East Bay and suburbs in northern San Mateo County. BART's rapid transit system operates five routes on of line, with 44 stations in four counties. With an average of 422,490 weekday passengers, 211,288 Saturday passengers, and 158,855 Sunday passengers in September 2014, BART is the fifth-busiest heavy rail rapid transit system in the United States.