The Ottoman Military College or Imperial Military Staff College or Ottoman Army War College (Ottoman Turkish: مكتب اركان حربيه شاهانه, romanized: Mekteb-i Erkân-ı Harbiyye-i Şâhâne or اركان حربيه مكتب, romanized: Erkân-ı Harbiye Mektebi), was a two-year military staff college of the Ottoman Empire. It was located in Constantinople (now Istanbul). Its mission was to educate staff officers for the Ottoman Army.