The 1905 season was the 22nd season of regional competitive association football in Australia.
| Federation | Competition[1] | Grand Final | Regular Season | |||||
|---|---|---|---|---|---|---|---|---|
| Champions | Score | Runners-up | Premiers | Runners-up | Third place | |||
| Northern District British Football Association | Northern NSW Football League[2] | Not played | West Wallsend Bluebells | Adamstown Rosebud | Wallsend Royals | |||
| South British Football Soccer Association | Sydney Metropolitan First Division[3] | Pyrmont | – | – | Pyrmont | Rozelle | Glebe | |
| Queensland British Football Association | Brisbane Area League[4] | Unknown | Wellingtons | Eskgroves | – | |||
| South Australian British Football Association | South Australia Division One[5] | Not played | Hindmarsh | – | – | |||
| Western Australian Soccer Football Association | Western Australia Division One[6] | Not played | Perth FC | Civil Service | Ex-Students | |||
| Federation | Competition[7] | Winners | Runners-up | Venue | Result | |
|---|---|---|---|---|---|---|
| Northern District British Football Association | Ellis Cup[8] | Adamstown Rosebud (4/6) | Adamstown Shamrocks (0/1) | – | 7–3 | |
| South British Football Soccer Association | Gardiner Challenge Cup[9] | Balmain (4/0) | Rozelle (0/1) | – | 2–1 (R) |
(Note: figures in parentheses display the club's competition record as winners/runners-up.)