ACX
| Acronym | Definition |
|---|---|
| ACX | Atlantic City Expressway (toll road; New Jersey) |
| ACX | Asynchronous Cross Connect |
| ACX | Active Control Experts (industrial engineering consultants; Cambridge, MA) |
| ACX | Available Chemicals Exchange |
| ACX | Australian Climate Exchange |
| ACX | Asia Carbon Exchange (Asia Carbon Global) |
| ACX | Assistant Chief Executive (South Holland, UK) |
| ACX | Advanced Combat Experimental |