Trachylepis dumasi is a species of skink, a lizard in the family Scincidae.

[2] The specific name, dumasi, is in honor of American herpetologist Philip Conrad Dumas.

[3] The preferred natural habitats of T. dumasi are forest and rocky areas, at altitudes of 100–250 m (330–820 ft).

[1] A relatively small species for its genus, the maximum recorded snout-to-vent length (SVL) of T. dumasi is 5.5 cm (2.2 in).

Dorsally, the head, body, and tail are brown.