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
See also
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