West Sikkim is a district of the Indian state of Sikkim.  Its capital is Geyzing, also known as Gyalshing.

Other important towns include Pelling and Yuksom.

West Sikkim is the site of the ancient state capital Yuksom.

Attractions include the Khecheopalri Lake, where, according to legend, not a leaf is allowed to fall on the surface of the lake and the Dubdi Monastery, the first monastery of the state.