Northern League One
| Founded | 2014 1998–2013 (as Northern First Division) 1959–1997 (as Northern Second Division) |
|---|---|
| Country | Australia |
| Number of clubs | 10 |
| Level on pyramid | 3 |
| Promotion to | NPL NNSW |
| Relegation to | Zone Football League |
| Domestic cup(s) | National Australia Cup State Northern NSW Football State Cup |
| Current premiers | Belmont Swansea United (2024) |
| Website | |
Northern League One is a semi-professional soccer competition in Northern New South Wales. The competition is conducted by Northern NSW Football, one of two organising bodies in New South Wales (the other being the National Premier Leagues NSW organised by Football NSW). The league sits at Level 2 on the Northern New South Wales league system (Level 3 of the overall Australian league system).
The league was formally known as the Northern Second Division (1959-1997) and subsequently the Northern First Division (1998-2013).