Lachung is a town and hill station in Mangan district in northeast Indian state of Sikkim.

The town's economy has been boosted by tourism in recent years as the region has been opened up by the Indian government.

Tourists come from all over the world to visit the town between October and May, mostly on their way to the Yumthang Valley and the Lachung Monastery.

Lachung has been described as the "most picturesque village of Sikkim" by British explorer Joseph Dalton Hooker in his definitive, The Himalayan Journal (1855).

This article related to a location in the Indian state of Sikkim is a stub.