ABX

ABX may refer to:
 * ABX test, a double-blind testing method commonly used in codec listening tests and in ascertaining high fidelity
 * Abaknon language, an Austronesian language of the Philippines
 * Albury Airport in Albury, New South Wales, Australia, from its IATA airport code
 * Barrick Gold, from its TSX and NYSE stock symbol
 * Antibiotics, antibacterial medications
 * ABX Air
 * An asset-backed securities index
 * ABX diagnostics, a medical device manufacturer, which was acquired by Horiba