| Class | System | Type | Gauge | Road Numbers - Click on entry to see full details |
|---|---|---|---|---|
| O | CR | E | S | 45, 48 |
| O | SAR | LS | B | 54, 55, 204 |
| O | SAR | P | B | 18 |
| O | SAR | W | N | 1899, 1900, 1901, 1902, 1903, 1904, 1905, 1906, 1907, 1908, 1909, 1910, 1911 |
| O | V&SARJS | P | B | 1, 1, 2, 3, 3, 4, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 30 |
| OA | P | B | 37, 38, 39 | |
| OA | V&SARJS | P | B | 31, 32, 34, 35, 37, 38, 39 |
| Oasis Bar | AN | P | S | CDF 265 -- AOB 265 -- Oasis Bar -- Menindee Lakes -- Sir Augustus & Francis Gregory Outback Explorer Lounge |
| OB | P | B | 40, 41, 42 | |
| OB | COR | W | S | 65 (see "R/RT/TOA 36 -- NTOA 1808") |
| OB | CR | W | S | 81 (see "R/RT/TOA 27") |
| OB | V&SARJS | P | B | 33, 36, 40, 41, 42 |
| OBF | G&W | W | S | OBF |
| OBN | G&W | W | S | OBN |
| OC | SAR | W | N | 755, 756, 757, 758, 759, 760, 761, 762, 763, 764, 765, 766, 767, 768, 769, 770, 771, 772, 773, 774, 775, 776, 777, 778, 779, 780, 781, 782, 783, 784, 785, 786, 787, 788, 789, 790, 791, 792, 793, 794, 795, 796, 797, 798, 799, 800, 801, 802, 803, 804 |
| OE | SAR | W | N | 1243, 1331, 1332, 1333, 1334, 1335, 1336, 1337, 1338, 1339, 1340, 1341, 1342, 1344, 1345, 1346, 1347, 1348, 1349, 1350, 1351, 1352, 1353, 1354, 1355 |
| Office car | CR | E | S | Office car, Office car |
| Officers Kitchen Car | SAR | E | N | 170 -- Light -- Officers Kitchen Car |
| OHN | AN | W | N | 10, 16 |
| OHN | G&W | W | S | OHN |
| ON | SAR | W | N | 9634, 9635 |
| Onkaparinga | V&SARJS | P | B | Onkaparinga |
| onward) | SAR | E | B | Vice Regal 4 - (1940 onward) |
| Oodnadatta Car | AN | P | S | ARL 248 -- Oodnadatta Car |
| Oodnadatta Lounge | GSR | P | S | BRJ 223 -- ACC 223 -- Conference Car -- Oodnadatta Lounge -- Len Beadel Outback Explorer lounge |
| OPA | E | S | 1339, 1340 | |
| OPB | E | B | 74 | |
| OPB | E | S | 328 | |
| OPB | G&W | W | S | OPB |
| OPC | W | S | 381, 383, 385, 397 | |
| OPC | G&W | W | S | OPC |
| Orroroo | SteamTown | P | N | ARP/ARB/NARB 13 -- NARB 13 -- Orroroo |
| Outback Explorer Lounge | GSR | P | S | AFC 237 -- AFC 937 -- Hannans Bar Lounge -- Edward John Eyre Outback Explorer Lounge, AFC 305 -- Dreamtime Lounge -- William Christie Gosse Outback Explorer Lounge, BRJ 213 -- AFC 213 -- Blue Mountains Lounge -- Ernest Giles Outback Explorer Lounge, BRJ 222 -- AEC 222 -- Entertainment Car -- Sir John & Alexander Forrest Outback Explorer Lounge, BRJ 223 -- ACC 223 -- Conference Car -- Oodnadatta Lounge -- Len Beadel Outback Explorer lounge, BRJ 301 -- AFC 301 -- Flinders Lounge -- John McDouall Stuart Outback Explorer Lounge, CDF 265 -- AOB 265 -- Oasis Bar -- Menindee Lakes -- Sir Augustus & Francis Gregory Outback Explorer Lounge, Club Car 2 -- CCL 2 -- Nomuldi -- Charles Sturt Outback Explorer Lounge |
| Ovens | VR | P | B | Ovens -- Sleeping Car 3 |
| OW | CR | E | S | 5 |
| OWA | CR | E | S | 91 |
| OWB | P | S | 144 | |
| OWP | AN | P | S | 92 |
| OWR | P | S | 392 | |
| OWR | G&W | W | S | OWR |
| Oxley Sitting Car | P | S | 502 -- Burrumbeet -- Oxley Sitting Car -- AK 502 |
