ACX

ACX may refer to:


 * Audiobook Creation Exchange, an Audible.com audiobook service
 * Atlantic City Expressway
 * ACX Technologies, Inc, a holding company wholly owned by CoorsTek
 * Xingyi Wanfenglin Airport, China (IATA airport code ACX)
 * Air Cargo Germany (ICAO airline code ACX, now defunct)
 * Omani Arabic (ISO 639 language identifier acx)
 * Astral Codex Ten, the successor blog to Slate Star Codex