The Chief of the Nepalese Army is the military position of army head of the Nepalese Army, initially known as Gorkhali Army. The Chief of the Nepalese Army had been from among the Kaji officers during the 18th century. During the reign of Bhimsen Thapa, the title of Commander-in-Chief was introduced for the first time for denoting the army chief. Later in the late 1970s, the title was changed to Chief of Army Staff (CoAS). Currently, the Chief of Army Staff is the Chief of the Nepalese Army.

Bhimsen Thapa was a Nepalese statesman who served as the Mukhtiyar and de facto ruler of Nepal from 1806 to 1837. He is widely known as the longest-serving prime minister of Nepal and was inducted into the "National heroes of Nepal" by King Mahendra Bir Bikram Shah.