Tribhuvan Bir Bikram Shah Dev (30 June 1906–13 March 1955) was King of Nepal from 1911 to 1950 and from 1951 until his death.

He was born in Kathmandu (Nepal's capital city), the son of King Prithvi Bir Bikram Shah. Tribhuvan succeeded his father on 11 December 1911 as the King of Nepal, and he was crowned on 20 February 1913 at the Nasal Chowk, Hanuman Dhoka Palace in Kathmandu. One of his main reigning goals was to eliminate the oligarchical power of the Rana family. He was deposed in favour of his grandson, Nepal's current king Gyanendra, on 6 November 1950 and departed for India on 11 November. He was soon reinstated as King in 1951. He died a few years later in March 1955 at the Canton Hospital in Zurich and was succeeded by his son, King Mahendra.