Barbour's tropical ground snake (Trimetopon barbouri), also known commonly as Barbour's pygmy snake, is a species of snake in the family Colubridae. The species is endemic to Panama.
The specific name, barbouri, is in honor of American herpetologist Thomas Barbour.
T. barbouri is endemic to the western region of Panama, and occasionally is found on Barro Colorado Island.
The preferred natural habitat of T. barbouri is forest, at altitudes of .
T. barbouri has two normal prefrontals, unlike other species of its genus which have the prefrontals fused. The holotype, a male, measures in total length, which includes a tail long.
T. barbouri is oviparous.