A2X

A2X may refer to:


 * A2X Markets, a South African stock exchange
 * A2X, an ad exchange; see List of Cisneros entities
 * Haplogroup A2x, a subgroup of Haplogroup A (mtDNA)
 * a2x, a software program in the AsciiDoc software tool package
 * The A2x family of microprocessors created by Allwinner Technology