Blue-tailed skink may refer to:
Cryptoblepharus egeriae, a lizard native to Australia's Christmas Island Plestiodon elegans, the five-striped blue-tailed skink, a lizard found in East-Asia Plestiodon fasciatus, the five-lined skink of North America Trachylepis margaritifera, the rainbow mabuya of Africa Trachylepis quinquetaeniata, the five-lined mabuya of Africa (also present in Florida as an invasive non-native species) Panaspis megalurus, the blue-tailed snake-eyed skink of Tanzania