East Sikkim is one of the four administrative districts of the Indian state of Sikkim. Geographically, East Sikkim occupies the south-east corner of the state. The capital of East Sikkim is Gangtok, which is also the state capital. It is the hub of all administrative activity in the state.
The civilian region is administered by a district collector, appointed by the Union Government and the military area by a Major General. As of 2011 it is the most populous district of Sikkim (out of 4).