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).
After Sydney clubs broke away from the NSW Football Association in 1958, the Northern NSW Soccer Federation was created by Newcastle and Coalfields clubs.
An 8-team Northern Division Two was established with: Austral Dutch, Courtaulds, Jesmond, Kahibah, Kurri Kurri, Weston, Whitebridge and Young Wallsend.