Trachylepis nancycoutuae, also known commonly as Nancy Coutu's mabuya and Nancy Coutu's skink, is a species of lizard in the family Scincidae.

The species is endemic to Madagascar.

[2] The specific name, nancycoutuae, is in honor of American Peace Corps volunteer Nancy Coutu (1967–1996), who was murdered in Madagascar by cattle thieves.

[3] The preferred natural habitats of T. nancycoutuae are rocky areas and shrubland, at altitudes of 700–750 m (2,300–2,460 ft).

[1] The mode of reproduction of T. nancycoutuae is unknown.