Acrolepis (Ancient Greek for "tip scale") is an extinct genus of prehistoric bony fish that lived from the Tournaisian stage of the Mississippian (early Carboniferous) to the late Permian epoch. Some species from the Early Triassic of Tasmania are also ascribed to Acrolepis. It is a large piscivorous predatory fish in the acrolepid family, which occupy an apex predator niche in its locale. A. gigas was estimated to have grown up to 1.25 metres (4.1 ft) in length.