Mochlus pembanus, also known as the Pemba Island writhing skink, is a species of skink. It is found on Pemba Island off the coast of Tanzania and in coastal Kenya; the latter could be introductions.
Mochlus pembanus is fossorial and nocturnal. It occurs in coastal woodland and in a range of agricultural habitats. It is very common on Pemba and regularly encountered in Kenya. It can grow to 891NaN1 in snout–vent length.