Rhenock is a town in the Pakyong District in Sikkim, India, located on the border with the Kalimpong district of West Bengal. It lies 63 kilometres east of Gangtok, and 47 kilometres north of Kalimpong on the way to Jelepla Pass at an altitude of 1,040 metres. The word Rhe-nock (in Lepcha dialect) means Black Hill. Situated in the extreme east of Sikkim, Rhenock witnessed the establishment of the first police outpost in the state.