Natrix septemlineata Schmidt, 1925 Hebius septemlineatus, the Tengchong keelback snake, is a species of snake of the family Colubridae.

It is endemic to western Yunnan, China.

[1][2] The vernacular name refers to its type locality, Tengchong.

[2] Males measure 198–520 mm (7.8–20.5 in) and females 316–408 mm (12.4–16.1 in) in snout–vent length.

This article relating to Natricinae is a stub.