Bush encroachment is a serious environmental and economic problem in Namibia, but little is known about impacts on native reptile diversity. Area-confined visual surveys were used to examine a diurnal lizard assemblage in central Namibian commercial ranchlands. Surveys were conducted in plots of open savanna habitat and proximal bush-encroached habitat. Keywords: lizards, Mabuya, Pedioplanis, Lygodactylus, bush encroachment, savanna, habitat change, Namibia, Africa.