1989–90 Northern Football League

The 1989–90 Northern Football League season was the 92nd in the history of Northern Football League, a football competition in England.

Division One
Division One featured 17 clubs which competed in the division last season, along with three new clubs, promoted from Division Two:
 * Alnwick Town
 * Consett
 * Whickham

Division Two
Division Two featured 17 clubs which competed in the division last season, along with three new clubs.
 * Clubs relegated from Division One:
 * Chester-le-Street Town
 * Crook Town
 * Plus:
 * Hebburn, joined from the Wearside Football League