Tehri Garhwal is one of the largest districts in the hill state of Uttarakhand, India. Its administrative headquarters is at New Tehri. The district has a population of 604,747 (2001 census), a 16.15% increase over the previous decade. It is surrounded by Rudraprayag District in the east, Dehradun District in the west, Uttarkashi District in the north, and Pauri Garhwal District in the south.
Tehri Garhwal or Garhwal Kingdom, was a princely state, ruled by the Panwar (Shah) dynasty. Later, it became a part of the Punjab Hill States Agency of British India, which consists of the present day Tehri Garhwal District and most of the Uttarkashi district. In 1901, it had an area of about 4,180 square miles (10,800 km2) and a population of 268,885. The ruler was given the title of raja, but after 1913, he was honoured with the title of maharaja. The ruler was entitled to salutes of 11 guns and had a privy purse of rupees 300. The princely state acceded to India on 1 August 1949.