陆军总司令部（德语：Oberkommando des Heeres，通称「OKH」）是1936年至1945年德意志国防军陆军部队的最高指挥机构，在理论上受「国防军最高统帅部」的指挥。但实际上在1941年后，「国防军最高统帅部」直接指挥欧洲西线作战，「陆军总司令部」则指挥东线作战。

「陆军总司令部」与「海军总司令部」、「空军总司令部」鼎足而立分别指挥陆、海、空三军，理论上三者皆受「国防军最高统帅部」指挥管辖，不过因为海、空军为技术专业军种，希特勒在事务上难以置喙，故享有较大指挥自主权。

「陆军总司令部」在1939年迁移至柏林南方佐森地区的地下化建筑司令部，为了保密以「梅巴赫一号」（Maybach I）作为称呼代号，另有「梅巴赫二号」（Maybach II）则是指「国防军最高统帅部」。在陆军传统上，总司令部不负责作战计划，这个任务由总参谋部进行，因此陆军总参谋长才是全陆军中地位最重要的人物。

The Oberkommando des Heeres (OKH) was the Supreme High Command of the German Army. It was founded in 1935 as a part of Adolf Hitler's re-militarisation of the Third Reich. Its commander held the title Oberbefehlshaber des Heeres, Supreme High Commander of the Army. From 1938 OKH was together with OKL Oberkommando der Luftwaffe, Supreme High Command of the Air Force and OKM Oberkommando der Marine, Supreme High Command of the Navy, formally subordinated to the OKW Oberkommando der Wehrmacht, Supreme High Command of all Armed Forces (with exception of the Waffen-SS). During the war OKH had the responsibility of strategic planning of Armies and Army Groups, while the General Staff of the OKH managed operational matters. Each German Army also had an Armeeoberkommando, Army Command, or AOK. Until the German defeat at Moscow in December 1941, OKH and its staff was de facto the most important unit within the German war planning. Later OKW (Oberkommando der Wehrmacht, Supreme High Command of the Armed Forces) took over this position.