| WAGR ADX class | |
| Manufacturer: | Midland Railway Workshops |
| Yearservice: | 1959 |
| Numberbuilt: | 10 |
| Fleetnumbers: | ADX661-ADX670 |
| Operator: | Western Australian Government Railways |
| Engine: | AEC 11.3litre |
The WAGR ADX class was a 10 member class of diesel railcars operated by the Western Australian Government Railways between 1959 and 1988.
Based on the Cravens built ADG/ADH class railcars, in 1959 the Midland Railway Workshops delivered the first of 10 ADX railcars. In 1966, ADX670 was fitted with power doors. Although deemed a success, no more conversions followed. Withdrawals commenced in 1982 with the last withdrawn in September 1988. Some donated their engines to ADGs.