The 1912 season was the 29th season of regional competitive association football in Australia.
| Federation | Competition[1] | Grand Final | Regular Season | |||||
|---|---|---|---|---|---|---|---|---|
| Champions | Score | Runners-up | Winners | Runners-up | Third place | |||
| Northern District British Football Association | Northern NSW Football League[2] | Cessnock | 1–0 | West Wallsend | Cessnock | West Wallsend | Adamstown Rosebud | |
| New South Wales British Football Association | Sydney Metropolitan First Division[3] | Sydney | 1–0 | Balmain | Balmain | Sydney | Glebe | |
| Queensland British Football Association | Brisbane Area League[4] | Unknown | Blackstone Rovers | Bulimba Rangers | Unknown | |||
| South Australian British Football Association | South Australia Division One[5] | Not played | Port Adelaide | Adelaide | Hindmarsh | |||
| Anglo-Australian Football Association | Victorian Amateur League[6] | Not played | Williamstown-Yarraville | Burns | Carlton United | |||
| Western Australian Soccer Football Association | Western Australia Division One[7] | Not played | Claremont | Fremantle | City United | |||
| Federation | Competition[8] | Winners | Runners-up | Venue | Result | |
|---|---|---|---|---|---|---|
| Northern District British Football Association | Ellis Challenge Cup[9] | Cessnock | West Wallsend Bluebells | – | 1–0 (R) | |
| New South Wales British Football Association | Gardiner Challenge Cup[10] | Balmain (5/0) | Sydney (0/1) | – | 1–0 | |
| South Australian British Football Association | South Australia Federation Cup[11] | Adelaide (1/0) | Tandanya (0/1) | – | 2–1 | |
| Anglo-Australian Football Association | Dockerty Cup[12] | Yarraville (2/1) | Wonthaggi Rangers (0/1) | – | 4–3 |
(Note: figures in parentheses display the club's competition record as winners/runners-up.)