Rhenock is one of the 32 Legislative Assembly constituencies of Sikkim state in India. It is part of Pakyong district. Chief minister of state represents this constituency.
It is composed of the following Revenue Blocks: Sajong of Gangtok Sub-Division; Pachak, Kamarey Bhasmey, East Pendam, Dikling, Amba, Tshalumthang, Pacheykhani(Dikling), Losing, Pacheykhani(Losing), Taza, Tarpin and Rhenock in Pakyong Sub-Division.