ABJ

Abj is an abbreviation for abject, abjunction, and abjuration. ABJ may also refer to:


 * ABJ (motorcycle), a 1950s bike built by AB Jackson Cycles of Birmingham, England
 * Adler–Bell–Jackiw anomaly, in theoretical physics
 * Abaeté Linhas Aéreas, Brazil airline ICAO code
 * Félix-Houphouët-Boigny International Airport, Abidjan, Côte d'Ivoire IATA code
 * Aka-Bea language, ISO 639 code
 * The American Business Journal, monthly business publication
 * Anything But Joey, pop-rock band
 * Bachelor of Arts in Journalism, degree at the University of Georgia, United States