| Northern Army Group | |
|---|---|
 NORTHAG insignia | |
| Active | 1 November 1952 – 24 June 1993 |
| Allegiance |  North Atlantic Treaty Organization |
| Part of | Allied Forces Central Europe |
| Headquarters | Rheindahlen |
The Northern Army Group (NORTHAG) was a NATO military formation comprising four Western European Army Corps, during the Cold War as part of NATO's forward defence in western Germany.
The Army Group headquarters was established on 1 November 1952 in Bad Oeynhausen, but was relocated in 1954 to Rheindahlen. The HQ complex near Mönchengladbach contained NORTHAG HQ and three other command posts: the headquarters of the Second Allied Tactical Air Force (2 ATAF), British Army of the Rhine (BAOR) and Royal Air Force Germany (RAFG).
Previously, 21st Army Group had been on the left flank of the Allied advance into Germany, and had advanced into the North German Plain. This may have been the reason that a four-corps sized formation - which would usually be considered an army - was given the title of 'Army group'.