Pseudoxenodontinae is a small subfamily of colubroid snakes, sometimes referred to as a family (Pseudoxenodontidae).

They are found in southern and southeastern Asia, from northeast India to southern China (including Taiwan) and south into Indonesia as far east as Wallace's Line.

Shared features of the hemipenes between Pseudoxenodon and Plagiopholis first described in 1987,[3] were later backed up by evidence from DNA in the early-2010s.

At least two species of Pseudoxenodon (P. bambusicola and P. macrops) have impressive threat displays, including flashing boldly banded ventral patterning and bright yellow coloration, spreading a hood, and playing dead.

[10][11] In spite of these differences, several studies have placed these two genera in a group together at or near the base of either Dipsadinae or Dipsadinae + Natricinae,[4][12][13] whereas one study suggested that at least Pseudoxenodon is nested within Dipsadidae and represents a reverse west-to-east colonization across the Bering Land Bridge, from South America to Asia.