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.

Mukhtiyar was the position of head of executive of Kingdom of Nepal between 1806 and 1843. It was equivalent to Prime Minister of Nepal. There were 7 Mukhtiyars appointed between 1806 and 1843.