The Nepali Army or Gurkha Army is the army of Nepal and a major component of the Military of Nepal. Service is voluntary and the minimum age for enrollment is 18 years. The army was known as The Royal Nepalese Army (RNA) during the monarchy system in Nepal. It was renamed into Nepal Army since 28 May 2008 with the abolishing of 238-year-old monarchy. Unlike other military forces around the world, the Nepalese Army has a very strict joining policy, similar to the Gurkha regiments, as it is highly recommended to have a distinguished period in the police first.

Nepal unification campaign was a turning point in the history of the Nepalese army. Since unification was not possible without a strong army, the management of the armed forces had to be exceptional. Apart from the standard Malla era temples in Kathmandu, army being organized in Gorkhas, technicians and experts had to be brought in from abroad to manufacture war materials. After the Gorkhali troops captured Nuwakot, the neighbouring principality of Kathmandu (Kantipur) in the year 1744, the Gorkhali armed forces came to be known as the Royal Nepalese Army.