| Acronym | Definition |
|---|
| ARX | Auto Route Express |
| ARX | Automatic Retransmission Exchange |
| ARX | AutoCAD Runtime Extension |
| ARX | Adaptive Resource Switch (Acopia) |
| ARX | Autoregressive Exogenous |
| ARX | Artists' Regional Exchange (collaborative international exhibition project) |
| ARX | Advocacy Resource Exchange (est. 2004; UK) |
| ARX | Action Research Exchange (Simon Fraser Public Interest Research Group; Simon Fraser University; Burnaby, British Columbia, Canada) |
| ARX | Experimental Repair Ship |
