Amar Singh Thapa (1759 – October 1814), distinguished as Sanukaji Amar Singh Thapa[3] (Nepali: सानुकाजी अमर सिंह थापाSānukājī Amar Siṃh Thāpā) was a Nepalese military commander, courtier, minister and regional administrator. He was born as the youngest son of one of the leading Gorkhali Bharadar (state-bearing officer) Birabhadra Thapa. He led battles against many independent principalities in Nepal and a battle against Tibet. He was a Governor of Palpa and retained the post till his death in 1814.
He was born as the third and youngest son of Kaji Bir Bhadra Thapa. His two elder brothers were Jeevan Thapa and Bangsha Raj Thapa of which Jeevan Thapa died in the Battle of Kirtipur with Kalu Pande.[1] He had two wives one of whom was Satyarupa Maya and the other remains unnamed.[4] His sons fwith Satyarupa Maya were Bhimsen, Nain Singh, Bakhtawar Singh, Amrit Singh, and Ranabir Singh.[5] From his second wife, he had two sons—Ranbam and Ranzawar.[5]