1919–20 Northern Football League

The 1919–20 Northern Football League season was the 27th in the history of the Northern Football League, a football competition in Northern England. South Bank were crowned champions via a three team playoff after they finished the season on 38 points along with Bishop Auckland and Crook Town.

Clubs
From the 13 clubs which competed in the 1914–15 season 4 did not reappear:
 * Darlington St. Augustine's
 * Leadgate Park
 * Harrogate
 * Grangetown Athletic

Also 5 new clubs joined the league:
 * Redcar
 * Auckland St. Helen's United
 * Darlington Railway Athletic
 * Grangetown St. Mary's
 * West Hartlepool St. Joseph's

Championship playoff

 * 4 September 1920: Bishop Auckland 4–2 South Bank
 * 11 September 1920: Crook Town 2–1 Bishop Auckland
 * 18 September 1920: South Bank 4–0 Crook Town