| Location: | Senne, North Rhine-Westphalia, Germany |
| Map Type: | North Rhine-Westphalia |
| Image Map Caption: | location in North Rhine-Westphalia |
| Type: | Military training area |
| Site Area: | 116sqkm |
| Ownership: | German Government |
| Controlledby: | UK Ministry of Defence |
| Operator: | British Army |
| Garrison: | British Army Germany |
The Sennelager Training Area (German:) is a military training area in Germany, under the control of British Forces based in Paderborn Garrison. It covers an area of 116sqkm, and belongs to the German Government, which discharges its responsibility through its Institute for Federal Real Estate. The area was first used for military purposes at the end of the 19th century. The Field Marshal Rommel Barracks, Augustdorf is located nearby.
The training area lies north of Paderborn, on the western edge of the Teutoburg Forest in the middle of the Senne, at a height of between and . The Stapel Exercise Area in Lage, north of Augustdorf, also belongs to the Sennelager Training Area, and covers some 550ha. The land on which the training area is established falls within the boundaries of the following towns and villages: (clockwise beginning in the north): Augustdorf, Detmold, Schlangen (Lippe), Bad Lippspringe, Paderborn, Hövelhof (Paderborn district), and Schloß Holte-Stukenbrock (Gütersloh district).
The Strategic Defence and Security Review 2010 concluded that the British Forces Germany would close the Sennelager military training area, and repatriate all troops and equipment back to the United Kingdom by 2020.
In November 2021, due to increasing threats of potential hostility from Russia, the British Government updated their stance to reflect the increased level of threat. The defence secretary announced the British Army would return to Germany to form one of three land hubs for the Army. The British Army is to base around 250 tanks and armoured vehicles in Germany, to be ready to respond to a potential Russian invasion.[1]