The Sikkim keelback (Herpetoreas sieboldii ) is a species of grass snake in the family Colubridae. The species is endemic to South Asia and Myanmar. It is closely related to the Himalayan keelback, and some treat this species as a synonym (Tillack 2003).
The specific name, sieboldii, is in honor of German zoologist Karl Theodor Ernst von Siebold.
H. sieboldii is oviparous.
