阿勃维尔（德语：Abwehr；[ˈapveːɐ̯]）或译阿勃韦尔，是前德国军事情报机构，存在于1921年至1944年间。术语“Abwehr”在德语是“防御”的意思。本来是一战后德国向协约国投降的产物，即其存在只是为了防御而已。1938年2月4日后改名为外国事务/武装力量最高指挥防御部（Amt Ausland/Abwehr im Oberkommando der Wehrmacht）。

尽管名称本身有反间谍的意味，但实际上却是一个彻底的情报机构，只处理“人力情报”相关事件。该部门直接向德国国防军最高统帅部负责。其总部位于柏林76/78 Tirpitzufer，靠近最高统帅部办公室。

The Abwehr (pronounced[ˈapveːɐ̯], "Defence") was a German military intelligence organization which existed from 1920 to 1945. Despite the fact the Treaty of Versailles prohibited the establishment of a German intelligence organization altogether, they formed an espionage group in 1920 within their defence ministry, calling it the Abwehr. with its purpose being defence against foreign espionage - an organizational role which later evolved considerably. As part of its implied task of counterespionage, the Abwehr gathered domestic and foreign information, most of it known technically as "human intelligence". Under General Kurt von Schleicher the individual military service intelligence units were combined and in 1929, placed under his Ministry of Defence, forming the foundation for the more commonly understood manifestation of the Abwehr. Each Abwehr station throughout Germany was based on army districts and more offices were opened in amenable neutral countries and in the occupied territories as the greater Reich expanded. When Hitler replaced the Ministry of War with the OKW and made the organization part of the Führer's personal "working staff" in June 1938, the Abwehr became its intelligence agency and Vice-Admiral Wilhelm Canaris was placed at the head of the organization. Its headquarters (HQ) was located at 76/78 Tirpitzufer, Berlin, adjacent to the offices of the OKW.