Mussoorie is a hill station and a municipal board, near Dehradun city in the Dehradun district of the Indian state Uttarakhand. It is about 35 kilometres (22 mi) from the state capital of Dehradun and 290 km (180 mi) north of the national capital of New Delhi. The hill station is in the foothills of the Garhwal Himalayan range. The adjoining town of Landour, which includes a military cantonment, is considered part of "greater Mussoorie", as are the townships Barlowganj and Jharipani.

A hill station is a town located at a higher elevation than the nearby plain or valley. The English term was originally used mostly in colonial Asia, but also in Africa, for towns founded by European colonialists as refuges from the summer heat and, as Dale Kennedy observes about the Indian context, "the hill station (...) was seen as an exclusive British preserve: here it was possible to render the Indian into an outsider". The term is still used in present day, particularly in India, which has the largest number of hill stations, most are situated at an altitude of approximately 1,000 to 2,500 metres.