1983–84 Northern Football League

The 1983–84 Northern Football League season was the 86th in the history of Northern Football League, a football competition in England.

Division One
Division One featured 16 clubs which competed in the division last season, along with two new clubs, promoted from Division Two:
 * Gretna
 * Peterlee Newtown

Division Two
Division Two featured nine clubs which competed in the division last season, along with nine new clubs.
 * Clubs relegated from Division One:
 * Durham City
 * West Auckland Town
 * Willington
 * Clubs joined from the Wearside Football League:
 * Brandon United
 * Chester-le-Street Town
 * Seaham Colliery Welware
 * Clubs joined from the Northern Football Alliance:
 * Darlington Cleveland Bridge
 * Shotton Comrades
 * Plus:
 * Langley Park