Namchi is the capital of the South Sikkim district in the Indian state of Sikkim. It has an average elevation of 1315 metres (4314 feet).
Namchi is situated at an altitude of 1,675 m (5500 feet) above sea level. It is situated at a distance of 92 km from the state capital Gangtok and 90 km from the town of Siliguri, the nearest railhead and airport. Namchi lies off the road between Melli and Jorethang. Namchi is well connected to other towns in Sikkim and West Bengal. Jeeps and buses regularly ply between Namchi to Gangtok, Pelling, Jorethang, Kalimpong and Siliguri.