2011–12 Northern Football League

The 2011–12 Northern Football League season was the 114th in the history of Northern Football League, a football competition in England.

Division One
Division One featured 19 clubs which competed in the division last season, along with three new clubs, promoted from Division Two:
 * Guisborough Town
 * Marske United
 * Newton Aycliffe

Also, Stokesley changed back name to Stokesley Sports Club.

Division Two
Division Two featured 17 clubs which competed in the division last season, along with five new clubs.
 * Clubs relegated from Division One:
 * Esh Winning
 * Ryton, who also changed name to Ryton & Crawcrook Albion
 * West Allotment Celtic
 * Plus:
 * Alnwick Town, promoted from the Northern Football Alliance
 * Easington Colliery, promoted from the Wearside Football League