Cordylus oelofseni, also known commonly as Oelofsen's girdled lizard and the western dwarf girdled lizard, is a species of lizard in the family Cordylidae. It is a small, spiny lizard endemic to South Africa.
The specific name, oelofseni, is in honor of African zoologist .
Adults of Cordylus oelofseni usually have a snout-to-vent length (SVL) of . Dorsally, it is black, with a pale gray vertebral line, which may be interrupted. Ventrally, it is dark gray.
Cordylus oelofseni is found in Western Cape province, South Africa.
The preferred natural habitat of Cordylus oelofseni is rocky areas of shrubland, at elevations above .
Cordylus oelofseni is terrestrial and saxicolous (rock-dwelling).
Cordylus oelofseni is ovoviviparous. Litter size is two to three young.